Choucair's relativism not only explained cultural differences; it also allowed for the possibility of using art to develop a culture in line with its spirit. Accordingly, Choucair called on governmental officials to strengthen the public role of art through state sponsorship and pedagogy. She remained committed to this pedagogical investment in art throughout her career, teaching sculpture at the Lebanese University (1977–1984) and at the American University of Beirut in the 1980s.
More boldly, Choucair argued that Arab-Islamic civilisation best corresponded to global contemporary needs. In a 1951 attack on Arabic literary scholar Musa Sulaiman, she asserted that both the phenomenological tradition of Sufic scientists and the narrative tradition of pre-Islamic Arabic literature proved Arabs had developed a unique understanding of existence, exceeding commonsense reliance temporal and spatial coordinate, one that was recognisable in quantum physics and modernity's global amenities, such as sonic jets, gene therapy, organ transplants, and space travel. Her writings demonstrate that Choucair's desire to combine Arab nationalism, modernist developmentalism, and cultural relativism propelled her from the conventional level of "refinement" in art typically afforded to women in Lebanon's business class to the pinnacle of professional, universalist art.
Choucair relocated to Paris in July 1948 to undertake formal art training. The gouaches and sketches from this period trace a whirlwind of movement, interaction, and exploration. To master classicism, she enrolled in a life drawing class at the École Nationale des Beaux-Arts in Paris in 1948. To challenge realism, she studied with the Cubist master Fernand Léger in 1949. However, Léger's approach to moving from normal perception to stylised forms dissatisfied her. Choucair got to the essence of graphic elements—whether they were Arabic letters or geometric shapes—by changing their colours, sizes, or sharp edges in ways that showed the hidden range of possibilities inherent to their existence. This was the beginning of the "module" method she used later in her sculptural assemblages.
Following her "noble forms," Choucair moved swiftly from the bastion of conservative art to the outermost avant-garde. By October 1950, she had helped inaugurate L'Atelier de l'art abstrait, led by Edgard Pillet and Jean Dewasne. Among other members were Alberto Magnelli, R. Mortensen, Viktor Vasarely, and Jean Deyrolle. Reviving her role from Beirut's intellectual scene, Choucair organised the Atelier's bimonthly debates and contributed to its affiliated art publications, Art d'Aujourd'hui and Combat. In early 1951, she exhibited solo at Galerie Colette Allendy in Paris and with her atelier mates at the Salon des Réalitées Nouvelles.
A contemporary critic, Michel Seuphor, aligned the Atelier with Kandinsky's passion for plastic creation rather than Mondrian's quest for construction. For example, the artists asked how to paint a square—the epitome of a mental construction—that points not to an ideal, Platonic form but rather exists for itself in the context of its own painterly, aesthetic creation. Choucair's works, like Composition on Green Module (1947–1951), broke simple two-dimensional shapes, such as the rectangle, in a way that was both random and repeatable, leaving linear traces of the exposed interior. These lines, both of the original rectangle and yet out of it, repeat themselves seemingly incessantly but at varying angles and degrees of visibility to become the basis for a composition that decomposes the original form.
In the summer of 1951, Choucair returned to Beirut with hopes of founding a modern art institute in her hometown and of continuing to participate in a "global art renaissance," as she put it in an interview at the time. She adopted a pace of one major show per decade, during which she would make a statement about art's potential to shed light on life. Befitting her scepticism about teleological time, Choucair neither dated her production consistently nor worked programmatically. Therefore, historians have generally, following a practice established in the 2002 catalogue raisonné she supervised, analysed the bulk of her mature oeuvre into four thematic areas: 1) Trajectory of a Line; 2) Poems (Qasa'id); 3) Trajectory of an Arc; and 4) Duals (Muthannayat).
The questions about the nature of reality and universality that had spurred Choucair into art continued to animate her, prompting her to explore three-dimensional and even four-dimensional production. She was very interested in new developments in quantum physics and molecular biology. She used these new ideas in her art to explore the connections between stillness and movement, change and creation, and infinity and instantiation. For example, in the Muthannayat and Sharara series, she considered what a gene could be in art, where a principle of production is implanted into a fertile, shifting context (such as public space) with which it constantly interacts.
Continually inspired by both cutting-edge science and Islamic theology, Choucair sought principles of art form that could both generate universal interactions on a cosmological scale and account for minute, particular events in the viewer's immediate experience. The ability of quantum mechanics to explain unmeasured possibility and discrete actuality at once was critical to Choucair's self-formulation. Fashioning geometric-chromatic "equations," she worked like a mental chisel, carving out spaces that could invite people to experience majestically infinite possibility as a manifestation of divinity. Artist and critic Samir Sayigh (1951–date unconfirmed) has written of Choucair's "theological sculptures" as intellectual-optical exercises that leap into motion when viewed by an eye able to sense the piece's original state (the foundational visual algorithm) and mentally undo and rework its being by following the substitutions of scale, the shifts in proportions, or the compressions in tension.
Significantly, her sculptures often begin as tiny line drawings that become contours of terracotta maquettes, which may germinate in any medium, from oak wood to bronze to polyurethane, and can grow in size. Such works explore principles of encounter between masses poised to grow in scale from intimate to monumental. Similarly, in revealing their seams, the conjunctions of her composite sculptures speak to the pressure and passion of intersection while suggesting alternative compositions. They thrive when they spark playful, curious public interactions, including actual reassembling by audiences. Given that particular instantiations are not the point of her projects, Choucair frequently commissioned the actual execution of her domestic carpets and monumental sculptures and delighted in expanding the array of possible public encounters.
Though Choucair refrained from exhibiting her work for long periods, she never lived in seclusion. Ever committed to art's integration into everyday life, her first post-Paris job was as a designer with the development agency Point Four. She married Yusif Choucair, a journalist, and had a daughter, Hala, in 1957. Still, at a time when 45 percent of Lebanese women were married by age 20, 85 percent had children by age 25, and few held extramarital jobs after marriage, Choucair's integration of domestic, professional, and artistic life was nearly unique. The Lebanese Civil War (1975–1992) impacted her work by prohibiting public implementations of sculptural projects and by the disappearance of one monument in 1983. Still, it did not directly preoccupy her. She addressed politics through civics, meaning that aesthetics demarcated a realm for enhancing interpersonal, international, and cosmological relations.
While thoroughly ensconced in her hometown, Choucair made significant contributions to world art throughout her career. In 1955, she toured American arts and crafts academies, including the Cranbrook Academy (Detroit, MI), the Pi Beta Phi Settlement School (Gatlinburg, TN), the Penland School of Crafts (Bakersville, NC), and the Pratt Institute (Brooklyn, NY). Choucair's engagement with American modernism remains to be elucidated, but clearly, its expansion of art's boundaries and the commitment to merging form and function infused her subsequent sculptural work. In 1969, the French government hosted her for a year's residency, after which the Salon de Mai in Paris invited her annually. In 1980, the Iraqi government hosted her for a one-month residency. A 2002 catalogue raisonné provided the first comprehensive understanding of her work across its various media. An online retrospective by ArteEast presented Choucair's work in the context of "historical modernisms," coinciding with the global art world's nascent interest in "alternative modernisms." A retrospective in the Beirut Exhibition Center in 2011 initiated another at the Tate Modern (London, UK) in 2013.