over·ac·tive 
/ˌoʊvɚˈæktɪv/ adjective
/ˌoʊvɚˈæktɪv/ adjective [more overactive; most overactive] : too active especially in a way that produces a bad result
▪ She has an overactive bladder. ▪ His crazy ideas are products of an overactive imagination.
▪ She has an overactive bladder. ▪ His crazy ideas are products of an overactive imagination.
— over·ac·tiv·i·ty /ˌoʊvɚrækˈtɪvəti/ noun [noncount]
▪ This condition is caused by overactivity of the thyroid gland.
/ˌoʊvɚrækˈtɪvəti/ noun [noncount] ▪ This condition is caused by overactivity of the thyroid gland.
