相關單詞同義詞leisure, sparetime, 近義詞 extramarital 婚外的, adulterous 通奸的, additional 附加的, supplementary 補充的, optional 任選的, secondary 次要的, extramural （指大學教學﹑ 課程等）..., subsidiary 子公司, clandestine 秘密的(常指違法的行為)..., illicit 非法的, improper 不合適的臨近詞extra, extra gift相似詞extracellular, extract, extraction, extractor, extraditable, extradite, extrajudicial, extramarital, 返回 extracurricular