Synonyms of decomposition

decomposition

noun

as in decay

the process by which dead organic matter separates into simpler substances

the unmistakable smell of decomposition led us to some fruit that had fallen behind the refrigerator

Synonyms & Similar Words

• decay
• fermentation
• putrefaction
• rot
• spoilage
• corruption
• breakdown
• disintegration
• putrescence
• festering
• dissolution
• crumbling
• souring
• curdling
• moldering

Antonyms & Near Antonyms

• growth
• maturation
• ripening

Example Sentences

Recent Examples of decomposition

One key indicator of soil health is decomposition rates of complex organic matter, breaking down stuff like leaves, wood, even cadavers into simpler organic and inorganic compounds, releasing C02 and nutrients in the process. — Jennifer Ouellette, ArsTechnica, 27 Aug. 2026

This doesn’t mean that a region’s optimal underground environment is always one that facilitates rapid decomposition. — Andrew Paul, Popular Science, 26 Aug. 2026

Heat, sunlight exposure, monsoons, animals and others speed up decomposition, Hess says. — Emma Tucker, CNN Money, 24 Aug. 2026

At the molecular level, the ammonia formed from the decomposition of urea in the urine acts as the mordant. — Encyclopedia Britannica, 19 Aug. 2026

Erosion can move the straw, while decomposition gradually breaks it down. — Anthony Reardon, Kansas City Star, 19 Aug. 2026

According to the medical examiner's office, the bodies were improperly stored at the funeral home and were in various states of decomposition at the time. — Jeramie Bizzle, CBS News, 12 Aug. 2026

Warm weather can make odors worse and accelerate decomposition. — Karen Brewer Grossman, Southern Living, 10 Aug. 2026

Investigators and forensic pathologists who responded found remains in various states of decomposition. — Michael Sinkewicz, FOXNews.com, 8 Aug. 2026