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Related to underactive: underactive bladder, Underactive thyroid


Characterized by insufficient or abnormally low activity: an underactive area of the brain.

un′der·ac·tiv′i·ty (-ĭ-tē) n.


1. not sufficiently active
2. (Medicine) med (of the thyroid or adrenal glands) not functioning at full capacity


(ˌʌn dərˈæk tɪv)

insufficiently active: an underactive thyroid gland.
un`der•ac•tiv′i•ty, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.underactive - abnormally inactiveunderactive - abnormally inactive      
inactive - not active physically or mentally; "illness forced him to live an inactive life"; "dreamy and inactive by nature"
References in periodicals archive ?
Depression, type 2 diabetes, and obesity--which raises the risk for heart problems, arthritis, and cancer--are also more common in people with an underactive thyroid.
People with an underactive thyroid gland produce insufficient amounts of the hormones required for optimal body functioning.
Light exercise could help, but it's worth getting tests for anaemia or an underactive thyroid gland
If a patient suffers from an underactive thyroid, he or she is likely to experience excessive tiredness, unexplained weight gain, feeling cold, constipation, and increased sleep, puffiness under the eyes and aches and pains.
It's usual to feel low and lethargic but sometimes WATCH OUT it could indicate an underactive thyroid gland
Hypothyroidism is a condition where the thyroid -- a butterfly-shaped gland in the neck -- is underactive and doesn't produce enough of some of the hormones a person needs to regulate their metabolism and other bodily functions.
An underactive gland could result in hair loss, brittle nails or dry, flaky skin.
For example, underactive thyroid is associated with higher cholesterol levels, so you'll want to closely watch your cholesterol numbers and be proactive in managing them, too.
A MERSEYSIDE woman won a pounds 7,000 payout from BT after they disagreed that her underactive thyroid was a disability.