прилагательное 1) вероломный, изменнический, предательский Синоним(ы): perfidious, disloyal, false, hypocritical, specious, traitorous, treasonable, unfaithful Антоним(ы): candid, honest, loyal, moral, sincere 2) ненадёжный; непрочный (о поверхности) Например: treacherous ice — ненадёжный лёд treacherous roof — непрочная крыша
adjective 1. characterized by or manifesting treachery; perfidious 2. a. likely to betray trust; unreliable Example: a treacherous memory b. providing insecure footing or support Example: treacherous quicksand c. marked by hidden dangers, hazards, or perils Synonyms: see faithless • treacherously adverb • treacherousness noun