reactive.

1. Acting in response to events rather than anticipating or directing them.

2. Likely to respond strongly through a chemical or other measurable reaction.

Use it for

Words that belong together

• reactive approach
• reactive behavior

On the page

The organization remained reactive despite repeated warnings.

Usage notes

Primary category: psychology / human behavior. Forms: Comparative more reactive; superlative most reactive 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.