1
: slightly or moderately wet : damp
I love cookies when they are moist and chewy.
2
: tearful
the eyes of both of us … were moist with the joy of successJack London
3
: characterized by high humidity
Fog is formed when warm moist air moves over a cold surface.
moistly adverb
moistness noun
Choose the Right Synonym for moist

wet, damp, dank, moist, humid mean covered or more or less soaked with liquid.

wet usually implies saturation but may suggest a covering of a surface with water or something (such as paint) not yet dry.

slipped on the wet pavement

damp implies a slight or moderate absorption and often connotes an unpleasant degree of moisture.

clothes will mildew if stored in a damp place

dank implies a more distinctly disagreeable or unwholesome dampness.

a prisoner in a cold, dank cell

moist applies to what is slightly damp or not felt as dry.

treat the injury with moist heat

humid applies to the presence of much water vapor in the air.

a hot, humid climate

Examples of moist in a Sentence

I love cookies when they are moist and chewy. The pork chops were tender and moist. a moist and spongy chocolate cake The plant grows best in direct sunlight and with rich, moist soil. She dabbed her moist eyes with a handkerchief. Fog is formed when warm moist air moves over a cold surface. The eggs will hatch sooner in warm, moist conditions.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Fungus thrives in warm, moist areas, so having your sweaty feet stuffed inside shoes and socks all day can create an ideal environment for fungus to grow. Meghan Overdeep, Southern Living, 7 Aug. 2025 This sheet cake is made with a moist vanilla and almond batter before being frosted with a salted buttercream. Sarah Martens, Better Homes & Gardens, 4 Aug. 2025 Keep moist and grow the plants in filtered or morning sun and afternoon light shade. Tom MacCubbin, The Orlando Sentinel, 2 Aug. 2025 Plant them 1-2 inches deep and keep the soil, which must drain well, moist. Joshua Siskin, Oc Register, 2 Aug. 2025 See All Example Sentences for moist

Word History

Etymology

Middle English moiste, from Anglo-French, perhaps from Vulgar Latin *muscidus, alteration of Latin mucidus slimy, from mucus nasal mucus

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of moist was in the 14th century

Browse Nearby Words

Cite this Entry

“Moist.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/moist. Accessed 21 Aug. 2025.

Kids Definition

moist

adjective
1
: slightly or moderately wet
moist earth
2
: characterized by high humidity
moistly adverb
moistness noun

Medical Definition

moist

adjective
1
: slightly or moderately wet
2
a
: marked by a discharge or exudation of liquid
moist eczema
b
: suggestive of the presence of liquid
used of sounds heard in auscultation
moist rales

More from Merriam-Webster on moist

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