underactive


un·der·ac·tive

adjective \-ˈak-tiv\

: not active enough

Full Definition of UNDERACTIVE

:  characterized by an abnormally low level of activity <an underactive thyroid gland>
un·der·ac·tiv·i·ty \-ˈti-və-tē\ noun

First Known Use of UNDERACTIVE

1959

un·der·ac·tive

adjective \-ˈak-tiv\   (Medical Dictionary)

Medical Definition of UNDERACTIVE

: characterized by an abnormally low level of activity <an underactive thyroid gland>
un·der·ac·tiv·i·ty \-ak-ˈtiv-ət-ē\ noun, plural un·der·ac·tiv·i·ties

Browse

Next Word in the Dictionary: underactor
Previous Word in the Dictionary: underaction
All Words Near: underactive

Seen & Heard

What made you want to look up underactive? Please tell us where you read or heard it (including the quote, if possible).