OVERACTIVE


Meaning of OVERACTIVE in English

o ‧ ver ‧ ac ‧ tive /ˌəʊvərˈæktɪv◂ $ ˌoʊv-/ BrE AmE adjective

too active, in a way that produces a bad result OPP underactive :

an overactive thyroid gland

Such fears are nothing more than the product of an overactive imagination.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.