The term 'overly quick' can be described by three words: HASTY (5 letters), RASH (4 letters), and TASTY (5 letters). HASTY means to do something in a hurry, without taking the time to think it through. RASH means to act without considering the consequences. TASTY means to have a pleasant flavor or smell. All three words describe someone who is overly quick in their actions, either without thinking or without considering the consequences.