instantaneous

Example:His instantaneous response to the question was brilliant.

Definition:A brief and immediate reaction to a stimulus.

Example:The instantaneous reaction of the crowd was one of shock and disbelief.

Definition:A very quick change in behavior or feeling in response to a specific event.

Example:The instantaneous impulse to run to the rescue was powerful.

Definition:A sudden, strong desire to perform a particular action.

Example:The police's instantaneous action led to a quick resolution of the situation.

Definition:A sudden and immediate movement or series of movements.

Example:The process of instantaneous neutralization of the chemical was completed successfully.

Definition:The quick and immediate neutralization of a chemical reaction.