eminent, memorable, extraordinaire, ludicrous, refreshing, astonishing, unexampled, incredible, indescribable, idiosyncratic, anomalous, rummy, fantastical, awe-inspiring, eerie, offbeat, startling, appalling, overpowering, scarce, grotesque, crazy, prodigious, amazing, exceeding, prominent, queer, quirky, unmatched, awesome, freak, cranky, unaccountable, surprising, familiar, out of the ordinary, unknown, towering, out of sight, atypic, bizarre, laughable, kooky, weird, significant, better, rum, unexpected, fine, inconceivable, preeminent, oddish, foreign, erratic, conspicuous, screwball, unordinary, whimsical, ridiculous, eccentric, aberrated, important, preposterous, strange, eery, unaccustomed, special, antic, especial, out-of-the-way, other, unparalleled, freaky, funny, uncustomary, distinguished, ineffable, standout, droll, great, crotchety, quaint, astounding, Gothic, magnificent, usual, preternatural, renowned, different, curious, stupendous, common, comical
different (part of speech: adjective)
unbalanced, irrational, deep, particular, normal, old-fashioned, mysterious, distinctive, extreme, unconventional, neurotic, recent, irregular, disturbing, shocking, unorthodox, exaggerated, unfamiliar, unwonted, profound, late, perplexing, choice, uncomfortable, forward, farfetched, inconsistent, staggering, mystifying, alien, new, puzzling, radical, original, ordinary, marked, monstrous, modern, aberrant, individual, abnormal, freakish, newfangled, unnatural, advanced, fresh
infrequent (part of speech: adjective)
unusual (part of speech: adjective)
exceptional (part of speech: adjective)
notable, marvelous, superior, sensational, remarkable, exotic, outlandish, excellent, miraculous, noteworthy, wonderful, phenomenal, outstanding, fabulous, wonderous, striking, unprecedented, fantastic
- This was not unusual. - "Christian's Mistake", Dinah Maria Mulock Craik.
- It was a little unusual. - "Prudence of the Parsonage", Ethel Hueston.
- If I have to travel with this fellow I should like to know that there is nothing unusual about the chest our gold is in. - "In the Days of the Guild", Louise Lamprey.