Teed off is a golf slang term that refers to a player's anger or frustration with their performance. Some antonyms for this term could be content, pleased, satisfied, serene, or calm. These words reflect a positive or peaceful state of mind, which is the opposite of being teed off. A player who is content with their performance is not easily angered, while someone who is pleased with their game is likely to be in a good mood. Similarly, a player who is serene or calm on the course is not easily frustrated, making these great antonyms for teed off.