相關單詞同義詞inevitable, some, necessary, automatic, secure, 近義詞 absolute, confident, convinced, express, particular, positive, reliable, settled, special, sure反義詞disputable, doubtful, questionable, uncertain, unclear, unconvinced, unfounded, unlikely, unreliable, unsettled, unsure臨近詞certainly, cert, Certaines, certain of, Certain tea, certainness, certain fee, certain jet, certain rate, certain size, certain-ty, certain list相似詞ceremony, Ceres, cerise, cert, certainly, certainty, certifiable, certificate, 返回 certain