Standard Lemma guide

deceitfulness

noun · 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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  • UK: /dɪˈsiːtfəlnəs/

1

noun

Meaning 1

The state or quality of being deceitful; duplicity.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

Examples

  • 1903, Andy Adams, The Log of a Cowboy: A Narrative of the Old Trail Days, ch. 20 "A Moonlight Drive", The lanterns both rear and forward being always in sight, I was as much at sea as any one as to the length of the herd, knowing the deceitfulness of distance of campfires and other lights by night.

Meaning relationships

Synonyms: fraudulence, trickery, underhandedness, deceit, deceitfulness, deceptiveness, dissimulation, duplicity, fraudulency, perfidy

Antonyms: none provided

2

noun

Meaning 2

the quality of being crafty

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: craftiness, guile

Antonyms: none provided

Broader terms: disingenuousness

History

Etymology

Etymology tree English deceitful Proto-Germanic *-inōną Proto-Indo-European *-dyé- Proto-Germanic *-atjaną Proto-Indo-European *-tus Proto-Germanic *-þuz Proto-Germanic *-assuz Proto-Germanic *-inassuz Proto-West Germanic *-nassī Old English -nes Middle English -nesse English -ness English deceitfulness From deceitful + -ness.

Across languages

Translations

2 source translations are retained for this English entry.

  • Afrikaans: agterbaksheid — The state or quality of being deceitful
  • Polish: fałsz — The state or quality of being deceitful