finicky.

Hard to satisfy because of demanding preferences or attention to minor details.

Use it for

Words that belong together

• finicky eater
• finicky mechanism

On the page

The finicky lock opened only after several careful adjustments.

Usage notes

Primary category: literary / elevated general. Forms: Comparative more finicky; superlative most finicky 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. Commonness: moderately common.