untrustworthiest

== English == === Adjective === untrustworthiest (uncommon) superlative form of untrustworthy: most untrustworthy === References === Harrap’s Unabridged Dictionary/Dictionnaire, 2nd edition, volume 1 (English-French/Anglais-Français), Edinburgh: Chambers Harrap Publishers Ltd, 2007, →ISBN, page 1348, column 1: “untrustworthy [ˌʌnˈtrʌstˌwɜːðɪ] (compar untrustworthier, superl untrustworthiest)”.