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Definition of compostable

compostable

/kəmˈpoʊstəbəl/
com · post · a · ble
Plural:compostables
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compostable Lexical Profile

compostable Game Scores & Validity

• adjective

1

Capable of disintegrating into natural, non-toxic organic elements in a compost environment.

Example

"The coffee shop switched to compostable cups and lids to reduce plastic waste."

Synonyms
View all synonyms for compostable
Antonyms
View all antonyms for compostable

• noun

1

An organic item or waste material that can be decomposed into compost, usually used in the plural.

Example

"Please separate your recyclables and compostables before taking the bins to the curb."

Word Nuance & Usage

While all compostable items are biodegradable, not all biodegradable items are compostable; 'compostable' specifically indicates that a material breaks down into nutrient-rich organic soil within a relatively short timeframe without leaving toxic residues.

• Nearby Words

compositing
composition
compost
compostable
composter
composure
compote

Cite this Entry

Wordmom. (2026). Definition of Compostable. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/compostable
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