Multiple choice Directions: Choose the word that is opposite in meaning to the given word. Prolong Lessen Decrease Hesitate Shorten Reveal answer Fill a bubble to check yourself D Correct answer Explanation Prolong means to extend in duration or time. Shorten means to make something shorter in duration, making it the correct antonym. Lessen and decrease refer to reduction in amount rather than time, and hesitate means to pause before acting.