False and Undependable

False

False adjective - Not true in one's allegiance to someone or something.
Usage example: false friends who deserted the prizefighter when all his money was gone

Undependable and false are semantically related. In some cases you can use "Undependable" instead an adjective "False".

Undependable

Undependable adjective - Not worthy of reliance or trust.

False and undependable are semantically related. Sometimes you can use "False" instead an adjective "Undependable".
Cite this Source
Undependable and False. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/false/undependable
False & Undependable. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/false/undependable>.
Undependable or False. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/false/undependable.
Google Ngram Viewer shows how "false" and "undependable" have occurred on timeline