Reaction is a term used to describe the response of an individual or group to a certain event or stimulus. REPERCUSSION is a 12-letter word that refers to the long-term consequences of a reaction, while RETALIATION is an 11-letter word that describes a response to an ACTION in which the same ACTION is done in return. OUTLOOK is a 7-letter word that describes the attitude or expectation of a person or group towards a certain situation. REPLY is a 5-letter word that refers to a response to a question or statement. RECOIL is a 6-letter word that describes a sudden movement away from something, usually in fear or surprise. EFFECT is a 6-letter word that refers to the result of an ACTION or event. IMPRESSION is a 10-letter word that describes the EFFECT that someone or something has on another person. REFLEX is a 6-letter word that describes an automatic and involuntary response to a stimulus. ACTION is a 6-letter word that refers to the process of doing something. Finally, GUT is a 3-letter word that refers to a person's instinctive feeling or reaction.