English Reference

Word

rotting

Phoneticsrot·ting

US/ˈɹɑtɪŋ/

UK/ɹˈɒtɪŋ/

Definitions

01decaying

B2

adj. decaying or breaking down naturally, usually with a bad smell.

adj. undergoing the process of organic decomposition; typically used to describe biological matter.

“The smell of rotting leaves filled the damp forest air in autumn.”

“The investigators found the structure was unsafe due to rotting floorboards that had been exposed to moisture for decades.”

Antonyms

02the process of decay

C1 · Science

n. the natural process of something breaking down and decaying.

n. the biological or chemical process of decomposition.

“The rotting of the fruit happened quickly in the hot summer sun.”

“The rapid rotting of organic waste in the landfill produces significant amounts of methane gas if not properly managed.”

Technical

Synonyms

decompositiondecayputrefaction

Real-World Examples

“The apartments smelled of rotting food and unflushed toilets.”
The Guardian · 16 Aug 2026

Etymology

From Middle English rotynge (“rotting”), from Old English rotung; equivalent to rot + -ing. Conflated with Middle English rotende, present participle of roten (“to rot”), from Old English rotiende, present participle of rotian (“to rot”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

rotVerbrottingAdjective

This entry

Level
B2 · Upper Intermediate
Frequency
Frequent
Updated

Scan code

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English Reference