© 2026 Sloth Lingo. Learn easy. Lounge wisely.

mendacity

Upper-Intermediate (B2)

IPA: /mɛnˈdæsɪti/

KK: /mɛnˈdæsɪti/

noun
Definition

The act of telling lies or being untruthful.


Example

His mendacity made it hard for anyone to trust him.


Conversation
Sloth A
Have you ever noticed how some people can't stand to admit their mendacity?
Sloth B
Yeah, it’s interesting how they always seem to twist the truth.
Sloth A
Right? It makes you wonder what drives that kind of behavior.
Sloth B
I guess some just can't handle being honest, even about small things.

Synonyms & Antonyms
Synonyms
falsehood
deceit
dishonesty
Antonyms
truth
honesty
veracity
Root Explanation

Mendacity → It is formed from "mendax" (meaning lying or deceitful) and the suffix "-ity" (meaning the state or quality of). The word "mendacity" refers to the quality or state of being deceitful or untruthful.

Memory Tip

Think of someone who is 'lying' ('mendax') and remember that 'mendacity' describes the quality of being untruthful.

Visually Confused Words
edacity
tenacity
minacity
Is this page helpful?