unpersonable
/(ˌ)ʌnˈpəːs(ə)nəbl/ /(ˌ)ʌnˈpəːs(ə)nəbl/adjective
Not personable, uncongenial; lacking personal charm; unappealing in appearance, manner, or behaviour.
Origin
Early 17th century; earliest use found in Francis Godwin (1562–1633), bishop of Hereford and historian. From un- + personable.