What are the opposite words for yawn?

Antonyms for the word "yawn" are words that express the opposite or a similar feeling to yawning. Some of the antonyms for "yawn" are: "energetic," "active," "alert," "wide-awake," "excited," "animated," "lively," "engaging," "stimulating," and "thrilling." These words suggest an opposite, active state of mind and body, where yawning or a state of tiredness is not present. By using antonyms for "yawn," one can communicate a more energetic or curious state of mind, and change the tone and mood of a conversation or piece of writing.