unnatural

unrepresentative

extraordinary, preternatural

rare, uncommon, uncustomary, unusual, unwonted

bizarre, curious, far-out, funny, kinky, odd, outlandish, out-of-the-way, outré, peculiar, quaint, queer, queerish, quirky, remarkable, screwy, strange, wacky (also whacky), way-out, weird, wild

eccentric, freakish, idiosyncratic, nonconformist, unconventional, unorthodox

extraordinary, preternatural

rare, uncommon, uncustomary, unusual, unwonted

odd, peculiar, strange

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, studied