Synonyms and related words :
Bohemian, abnormal, affable, anomalous, beat, breakaway, casual, cordial, crank, crankish, cranky, crotchety, degage, deviant, deviative, different, divergent, dotty, easy, easygoing, eccentric, erratic, exceptional, familiar, far out, fey, flaky, folksy, freakish, free and easy, fringy, funny, gracious, haymish, heretical, heterodox, hippie, homely, homey, idiocratic, idiosyncratic, informal, irregular, kinky, kooky, loose, maggoty, maverick, natural, not cricket, not done, not kosher, nutty, odd, oddball, offbeat, offhand, offhanded, original, peculiar, plain, queer, quirky, relaxed, screwball, screwy, simple, singular, sociable, strange, twisted, unaffected, unassuming, unceremonious, unconstrained, unfashionable, unnatural, unofficial, unorthodox, unstudied, wacky, way out, whimsical