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Synonyms

muggy

American  
[muhg-ee] / ˈmʌg i /

adjective

muggier, muggiest
  1. (of the atmosphere, weather, etc.) oppressively humid; damp and close.

    Antonyms:
    dry

muggy British  
/ ˈmʌɡɪ /

adjective

  1. (of weather, air, etc) unpleasantly warm and humid

"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

Other Word Forms

  • muggily adverb
  • mugginess noun

Etymology

Origin of muggy

1725–35; mug to drizzle (noun and v.) (< Scandinavian; compare Old Norse mugga mist, drizzle) + -y 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Still, the muggy morning session has the Bula FC squad sweating heavily at the club's base in Ba, a town on Fiji's main island in a northern coastal area known for its sugarcane farms.

From Barron's • Feb. 5, 2026

It can feel like I’m in a muggy rainforest, even in an air-conditioned room.

From The Wall Street Journal • Sep. 27, 2025

You could hear the sloshing of wet socks and Adidas Sambas as they price-checked knockoff memorabilia emblazoned with the Gallagher brothers’ iconically muggy faces.

From Los Angeles Times • Sep. 16, 2025

It will also start to feel quite humid with some very warm and muggy nights - which could make it uncomfortable for sleeping.

From BBC • Jul. 8, 2025

It was hot and muggy, and Natalie was panting and sweating by the time they finished hammering.

From "Two Degrees" by Alan Gratz