adj · noun · 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
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
Received-Pronunciation:/ɪmbəˈsiːl/
General-American:/ˈɪmbəsɪl/
General-American:/ˈɪmbəsəl/
US:Recorded audio is listed in the source snapshot.
obsolete:/ɪmˈbɛsɪl/
CMU ARPABET:IH1 M B AH0 S AH0 L
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
CMU ARPABET 2:IH1 M B AH0 S AY0 L
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Destitute of strength, whether of body or mind; feeble; impotent; especially, mentally weak.
Definition source: English Wiktionary via Wiktextract
Usage: dated
Examples
hospitals for the imbecile and insane
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
A person with limited mental capacity who can perform tasks and think only like a young child, in medical circles meaning a person who lacks the capacity to develop beyond the mental age of a normal five- to seven-year-old child.
Definition source: English Wiktionary via Wiktextract
Usage: obsolete
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A fool, an idiot.
Definition source: English Wiktionary via Wiktextract
Usage: derogatory
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
adjective satellite
Meaning 4
having a mental age of three to seven years
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: imbecilic, idiotic
Antonyms: none provided
5
noun
Meaning 5
a person of subnormal intelligence
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.