Synonyms of decompose

decompose 1 of 2

verb

ˌdē-kəm-ˈpōz 

as in to disintegrate

to go through decomposition

detectives needed to know how long it would take a corpse to decompose to that advanced state

Synonyms & Similar Words

• disintegrate
• decay
• rot
• perish
• deteriorate
• putrefy
• mold
• fester
• spoil
• descend
• fall apart
• corrupt
• crumble
• turn
• molder
• break down
• foul
• contaminate
• pollute
• rust
• ferment
• go to seed
• sour
• defile
• taint
• mortify
• sink
• turn off
• degenerate
• curdle
• wither
• decline
• addle
• dilapidate

Antonyms & Near Antonyms

• grow
• develop
• mature
• ripen
• restore
• age
• refresh
• renew
• purify
• integrate
• cleanse
• assemble
• compose
• improve
• better
• ameliorate
• meliorate

decomposition

2 of 2

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

Synonym Chooser

How is the word decompose different from other verbs like it?

Some common synonyms of decompose are decay, putrefy, rot, and spoil. While all these words mean "to undergo destructive dissolution," decompose stresses a breaking down by chemical change and when applied to organic matter a corruption.

the strong odor of decomposing vegetation

Where would decay be a reasonable alternative to decompose?

The words decay and decompose are synonyms, but do differ in nuance. Specifically, decay implies a slow change from a state of soundness or perfection.

a decaying mansion

In what contexts can putrefy take the place of decompose?

In some situations, the words putrefy and decompose are roughly equivalent. However, putrefy implies the rotting of animal matter and offensiveness to sight and smell.

corpses putrefying on the battlefield

How do rot and decompose relate to one another?

Rot is a close synonym of decompose and often connotes foulness.

fruit was left to rot in warehouses

When is spoil a more appropriate choice than decompose?

The synonyms spoil and decompose are sometimes interchangeable, but spoil applies chiefly to the decomposition of foods.

keep the ham from spoiling

Example Sentences

Recent Examples of decompose

Verb

The autopsy report said investigators used dental image comparisons to identify the body, which was severely decomposed. — Grace Toohey, Los Angeles Times, 19 Aug. 2026

But the last inspection was in October, 10 months before dozens of decomposing bodies were found at the South Chicago Chapel funeral home. — Megan De Mar, CBS News, 17 Aug. 2026

Noun

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