相关单词近義詞 unchallenged 未受過挑戰的..., unobstructed 無阻礙的, unrestricted 不受限制的, unhampered 無阻礙的, unimpeded 未受阻的, unrestrained 無限制的反義詞opposed, 反對的臨近詞UNO, Unota相似詞unobtrusive, unoccupied, unofficial, unopened, unoriginal, unorthodox, unpack, unpaid, 返回 unopposed