Standard Lemma guide

tomfool

adj · noun · verb · 5 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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No pronunciation record was provided for this word.

1

adj

Meaning 1

Silly or stupid.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A silly or stupid person, especially a boy or man.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Any of various tyrant flycatchers viewed as foolishly confiding.

Definition source: English Wiktionary via Wiktextract

Usage: Caribbean, colloquial

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

To act foolishly.

Definition source: English Wiktionary via Wiktextract

Usage: intransitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

a person who lacks good judgment

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: fool, sap, saphead, muggins

Antonyms: none provided

Broader terms: simpleton, simple

Narrower terms: ass, clown, buffoon, flibbertigibbet, foolish woman, fucker, fathead, goof, goofball, bozo, jackass, goose, cuckoo, twat, zany, meshuggeneh, meshuggener, morosoph, putz, wally

History

Etymology

From tom + fool.