Antonyms for the phrase "gave it a try" could include "didn't attempt", "refused to try", "ignored", "declined", "abstained from", "avoided", "passed up", "neglected", "eschewed", or "rejected". These words convey a lack of effort or initiative in trying something new or challenging. However, it is important to note that it is always better to try and fail than to never try at all. Trying new things helps people grow and gain experiences that can ultimately lead to success. So, while there are antonyms for "gave it a try", it is important to stay motivated and keep trying until success is achieved.