相关单词同義詞unnecessary, spare, useless, waste, 近義詞 unnecessary 不必要的, unwanted 不需要的, useless 無用的, unneeded 不需要的, pointless 無意義的, gratuitous 無緣無故的, unessential 非本質上的, supererogatory 職責以外的, redundant 多餘的，過多的..., superfluous 多餘的, dispensable 不是必要的, nonessential 非本質的, excess 超過, wordy 冗長的, extraneous 外來的, excessive 過分的, uncalled-for 不必要的, inessential 非必要的, uncalled for 不必要的, uncalled 不需要的, for 爲反義詞needful, 必需的臨近詞needs, needle, needlessly, needlessness, needless alarm, needless to say, needless bother, needless to add, needless distress, needless sacrifice, needless repetition, needless anxiety/suffering相似詞needle case, needle exchange, needlecord, needlepoint, needless to say idiom, needlessly, needlework, needn't, 返回 needless