相關單詞近義詞 single 單一的, complex 復雜的, complicated 復雜難懂的, involved 涉及的, intricate 復雜的, difficult 困難的反義詞reducible, 可縮小的臨近詞IR, Irimi相似詞irrecoverable, irredeemable, irredentism, irredentist, irrefutable, irregardless, irregular, irregularity, 返回 irreducible