Medical Dictionary


adj un·der·ac·tive \-ˈak-tiv\

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
March 28, 2015
persiflage Hear it
Frivolous bantering talk
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears