verb · 3 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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/ʌnˈbʌtən/
Southern-England:Recorded audio is listed in the source snapshot.
rhymes with -ʌtən
CMU ARPABET:AH0 N B AH1 T AH0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
verb
Meaning 1
To open (something) by undoing its buttons.
Definition source: English Wiktionary via Wiktextract
Usage: ambitransitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
verb
Meaning 2
To come open by having its buttons unfastened.
Definition source: English Wiktionary via Wiktextract
Usage: ergative, intransitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
verb
Meaning 3
undo the buttons of
Definition source: Princeton WordNet 3.0
Examples
unbutton the shirt
Meaning relationships
Synonyms: none provided
Antonyms: button
Broader terms: undo
History
Etymology
From Middle English onbottonen, unbotonen; equivalent to un- + button.
Across languages
Translations
16 source translations are retained for this English entry.