← BackshareGuessineffaceable/ˌɪnɪˈfeɪsəbəl/adjectiveImpossible to erase, remove, or forget; permanent.The experience left an ineffaceable mark on her heart.His kindness created an ineffaceable impression on everyone he met.The ink left an ineffaceable stain on the carpet.SynonymsindeliblepermanentAntonymserasabletemporary