impulsive.

Acting quickly on a feeling or urge without considering consequences.

Use it for

Words that belong together

• impulsive decision
• impulsive purchase

On the page

The impulsive decision complicated weeks of careful preparation.

Usage notes

Primary category: psychology / human behavior. Forms: Comparative more impulsive; superlative most impulsive 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: character, behavior. Commonness: moderately common.