unapproachable adj. + Add to list US //ˌənəˈpɹoʊtʃəbəɫ// UK //ʌnɐpɹˈəʊtʃəbəl// un·ap·proach·able SynonymsAntonymsEtymology Synonyms unreachableunreached Antonyms approachableOrigin From un- + approachable.