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Definition of moldy
moldy
/ˈmoʊl.di/
(UK: mouldy)
mol · dy
moldy Lexical Profile
CEFR
B1
Grade
4
Tier
2
Usage
Top 10k
Syllables
2
moldy Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
American Covered with or smelling of a fuzzy fungal growth caused by dampness or decay.
Example
"We had to throw away the loaf of bread because the bottom slices had turned moldy."
2
American Outdated, dreary, or lacking freshness and vitality due to age or neglect.
Example
"The historian spent weeks sorting through moldy records in the basement of the county courthouse."
Synonyms
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View all antonyms for moldyWord Nuance & Usage
Spelled "moldy" in American English and "mouldy" in British and Commonwealth English.
• Rhymes for moldy
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Word Origin & Etymology
First recorded in the late 14th century as Middle English 'mowldy', formed from the noun 'mold' (likely of Scandinavian origin, related to Old Norse 'mygla', meaning mold or mildew) plus the adjectival suffix '-y'.
Cite this Entry
Wordmom. (2026). Definition of Moldy. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/moldy