sufficient.

Enough in amount or force to meet a requirement or bring about a result.

Use it for

Words that belong together

• sufficient evidence
• sufficient condition

On the page

The observation was sufficient to reject the universal claim.

Usage notes

Primary category: analysis / argumentation / evidence. Forms: Normally non-gradable; no ordinary comparative or superlative. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Commonness: moderately common.