The term 'unmeditated' refers to an action that is not premeditated or planned. It is often used to describe a spontaneous, IMPULSIVE, INVOLUNTARY, and INSTINCTIVE reaction. IMPULSIVE is a 9-letter word meaning to act on impulse without thought or consideration. INVOLUNTARY is an 11-letter word meaning done without conscious control or choice. INSTINCTIVE is an 11-letter word meaning prompted by natural instinct rather than conscious thought. All three words can be used to describe an unmeditated action.