相关单词近义词 unchallenged 未受过挑战的..., unobstructed 无阻碍的, unrestricted 不受限制的, unhampered 无阻碍的, unimpeded 未受阻的, unrestrained 无限制的反义词opposed, 反对的临近词UNO, Unota相似词unobtrusive, unoccupied, unofficial, unopened, unoriginal, unorthodox, unpack, unpaid, 返回 unopposed