plastic

1 capable of being easily molded or modeled Silly Putty is famous for being very plastic Synonyms malleable, moldable, shapable (or shapeable), waxy Related Words adaptable; bendable, bendy [chiefly British], ductile, pliable, pliant, supple, waxen, willowy; elastic, flexible, flexile, limber, resilient, workable; bending, giving, kneadable, tractable, yielding Near Antonyms inflexible, intractable, rigid, stiff

2 lacking in natural or spontaneous quality there's usually a plastic cordiality at these corporate events Synonyms affected, assumed, bogus, contrived, factitious, fake, false, feigned, forced, mechanical, mock, phony (also phoney), artificial, pretended, pseudo, put-on, sham, simulated, spurious, strained, unnaturalRelated Words automatic, canned, concocted, fabricated, hokey, labored, manufactured, pat, unauthentic, unreal, unrealistic; double-dealing, empty, facile, hollow, hypocritical, insincere, left-handed, mealy, mealymouthed, two-faced, unctuous; exaggerated, histrionic, melodramatic, overacted, overdone, theatrical (also theatric); cute, cutesy, genteel, goody-goody, mincing, overrefined, simpering; conventional, formal, impersonal, inflexible, rigid, stiff, stylized, wooden; artful, calculated, conscious, cultivated, deliberate, premeditated, studiedNear Antonyms authentic, bona fide, real, realistic, right, true; honest, ingenuous, sincere, unpretending; easy, effortless, smooth; extemporaneous, impromptu, impulsive, instinctive, unconscious, unprompted, unrehearsed, unstudiedAntonyms artless, genuine, natural, spontaneous, unaffected, uncontrived, unfeigned, unforced