unconvincing.

Not strong or credible enough to make someone accept a claim, explanation, or portrayal.

Use it for

Words that belong together

• unconvincing explanation
• unconvincing performance

On the page

The explanation was unconvincing because it ignored the earliest records.

Usage notes

Primary category: analysis / argumentation / evidence. Forms: Comparative more unconvincing; superlative most unconvincing when comparison is meaningful. 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. Writing functions: evaluation. Commonness: moderately common.