Standard Lemma guide

mendaciously

adv · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /mɛnˈdeɪʃəsli/
  • US: Recorded audio is listed in the source snapshot.

1

adv

Meaning 1

In a lying or deceitful manner.

Definition source: English Wiktionary via Wiktextract

Examples

  • As a politician, he was very adept at speaking mendaciously in public.
  • I don't think I'm going to buy what she just told me. Her gestures, eye movements, and hesitancy in her tone raised some substantial red flags. Therefore, I have reason to believe she was giving an excuse mendaciously. If you could've witnessed this, you'd know it too!

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adverb

Meaning 2

in a mendacious and untruthful manner

Definition source: Princeton WordNet 3.0

Examples

  • I told him, quite untruthfully, that I had just returned from leave

Meaning relationships

Synonyms: untruthfully

Antonyms: none provided

History

Etymology

Etymology tree English mendacious Middle English -ly English -ly English mendaciously From mendacious + -ly.