dime-a-dozen (adjective) commonplace: usual, everyday
Sinonime: carper, caviler, detractor, disbeliever, doubter, doubting Thomas, egoist, egotist, flouter, misanthrope, misogamist, misogynist, mocker, pessimist, questioner, satirist, scoffer, skeptic, sneerer, unbeliever
Antonime: exceptional, infrequent,
peculiar,
rare,
uncommon,
unusual