humid

UK: /ˈhjuːmɪd/

US: /ˈhjumɪd/

US: (hyo̅o̅′mid or, often, yo̅o̅′-)

WordReference Random House Learner's Dictionary of American English © 2026

hu•mid /ˈhyumɪd/   adj. 

1. containing a high amount of water vapor:
   humid air.

hu•mid•ly, adv. 

WordReference Random House Unabridged Dictionary of American English © 2026

hu•mid  (hyo̅o̅′mid or, often, yo̅o̅′-), adj. 

1. containing a high amount of water or water vapor;
   noticeably moist:
   humid air; a humid climate.

• Latin (h)ūmidus, equivalent. to (h)ūm(ēre) to be moist + -idus -id⁴
• late Middle English 1375–1425

hu′mid•ly, adv. 
hu′mid•ness, n. 
Synonyms

dank, wet. See damp. 

Collins Concise English Dictionary © HarperCollins Publishers::

humid / ˈhjuːmɪd/ adjective

1. moist; damp

Etymology: 16th Century: from Latin ūmidus, from ūmēre to be wet; see humectant, humour

ˈhumidly adverb

ˈhumidness noun