Try Our Apps
Dictionary.com

follow Dictionary.com

2017 Word of the Year

underactive

[uhn-der-ak-tiv] /ˌʌn dərˈæk tɪv/
adjective
1.
insufficiently active:
an underactive thyroid gland.
Origin of underactive
1955-1960
First recorded in 1955-60; under- + active
Related forms
underactivity, underactiveness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for underactive
Historical Examples
British Dictionary definitions for underactive

underactive

/ˌʌndərˈæktɪv/
adjective
1.
(of the thyroid or adrenal glands) not functioning at full capacity
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Nearby words for underactive

Word Value for underactive

0
21
Scrabble Words With Friends