Search Dictionary
Definition of overactive
overactive
/ˌoʊvɚˈæktɪv/
o · ver · ac · tive
Adverb:overactively
overactive Lexical Profile
CEFR
B2
Grade
7
Tier
2
Usage
Top 10k
Syllables
4
overactive Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Excessively or abnormally active; functioning or operating at a higher level than is normal or desirable (especially of a bodily organ, gland, or the mind).
Example
"The patient was diagnosed with an overactive thyroid gland, which caused rapid weight loss and restlessness."
Synonyms
View all synonyms for overactive Antonyms
View all antonyms for overactive• Rhymes for overactive
• Nearby Words
Cite this Entry
Wordmom. (2026). Definition of Overactive. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/overactive