outlandish

Synonyms: alien awkward barbaric barbarous boorish clumsy curious droll eccentric erratic exotic extravagant fantastic far-out foreign freakish gauche graceless grotesque kinky odd outrageous outré peculiar preposterous quaint queer ridiculous rude singular tasteless ultra unconventional uncouth unheardof unorthodox unusual weird whimsical wild

Antonyms: common familiar normal ordinary usual