"Am over" implies an action or feeling that has been completed or surpassed. The antonyms, therefore, would be words that express a lack of completion or movement towards improvement.
1. Under - This antonym suggests that something has not yet been achieved or is incomplete.
2. Below - Similar to "under," this antonym indicates that an individual has not yet reached a certain level of success.
3. Short - This antonym refers to something that is inadequate or insufficient.
4. Incomplete - This word expresses that an action or feeling is unfinished or needs further attention.
Overall, the antonyms for "am over" suggest a lack of accomplishment or improvement towards a certain goal.