The antonyms for the phrase "corrected midcourse" can be varied depending on the context. However, some possible antonyms could be:
- Incorrect: instead of making the necessary adjustments during the course of an action or process, the mistake or error continues to persist.
- Undone: the corrections or alterations that were intended to be made during the midpoint of a task or journey were not executed.
- Unrevisable: the course of action cannot be modified or improved at the midpoint, leading to a potential undesirable outcome.
- Irreversible: certain decisions or actions cannot be corrected or redirected midcourse, leading to an irreversible consequence.
In summary, the antonyms for "corrected midcourse" are usually related to the lack of correction, revision, or improvement of a process or action at the midpoint.