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English expressions, clearly explained.

Mendacity meaning, definition, and synonyms

mendacity meaning photo

MendacityA formal word for dishonesty or a habit of not telling the truth. meansShows the definition or explanation of a word or phrase. a tendency to be untruthfulNot telling the truth; giving information that is false. or to lie. It is a formal word, often used to describe dishonesty in speech, writing, or behavior.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-17. AI assessment; not a guarantee of accuracy.

Pronunciation

AI-generated pronunciation audio (OpenAI).

Accent: General American English

IPA: /men-DASS-ih-tee/

Easy pronunciation: men-DASS-ih-tee (approximate spelling).

Stress: Stress falls on the second syllable: DASS.

Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-10-17. AI assessment; not a guarantee of accuracy.

Mendacity Meaning

a tendency to lie or not tell the truth

Part of speech: noun

Definition: the tendency to be untruthful

Example: The scandal exposed the politician’s mendacity.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-17. AI assessment; not a guarantee of accuracy.

Mendacity Synonyms

Similar Meaning

  • dishonesty
  • untruthfulness

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-17. AI assessment; not a guarantee of accuracy.

Common Mistakes

  • Mendacity is a noun, not an adjective.
  • It means untruthfulness or lying, not simply making a mistake or being inaccurate.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-17. AI assessment; not a guarantee of accuracy.

Frequently Asked Questions

What does mendacity mean?

Mendacity means a tendency to be untruthful or to lie.

What is a simple synonym for mendacity?

Simple synonyms include dishonesty and untruthfulness, depending on the context.

Is mendacity a common word?

It is fairly formal and less common in everyday speech than words like lying or dishonesty.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-17. AI assessment; not a guarantee of accuracy.

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