reactive

• Décrit ce qui réagit à un stimulus ou à un changement ; en chimie, se dit d'une substance qui entre facilement en réaction chimique.

Describes something that responds to a stimulus or change; in chemistry, it refers to a substance that readily undergoes a chemical reaction.

1. Participating readily in reactionsB2formalscientific

   Describes a substance that easily undergoes chemical reactions.

   Réactif (chimie)

   • Sodium is a highly reactive metal that reacts violently with water.
   • Reactive oxygen species can damage cells.
   • The chemist studied the reactive properties of the new compound.

   Synonymesactivelabileunstable

   Antonymesinertstableunreactive

2. Reacting to a stimulusB2formal

   Tending to respond to something that happens or is said, rather than acting independently.

   Réactif (qui répond à un stimulus)

   • The government's policy was purely reactive to the crisis.
   • A reactive approach to customer complaints is less effective than a proactive one.
   • His reactive behavior made it difficult to plan ahead.

   Synonymesreceptiveresponsivesensitivesusceptible

   Antonymesactiveindependentinitiativeproactivespontaneousunresponsive