相关单词近义词 insoluble [化]不能溶解的..., unfathomable 深得无法到达底部的..., inexplicable 无法说明的, insuperable （困难）难以克服的..., incomprehensible 不能理解的, unsolvable 不能解决的临近词una, Unasa相似词unambitious, unanimity, unanimous, unannounced, unanswered, unanticipated, unapologetic, unappealing, 返回 unanswerable