- debilitated, enfeebled, infirm, seedy - weak and feeble; "I'm feeling seedy today"
Antonym: healthy (indirect, via unhealthy)
- enfeeble, debilitate, drain - make weak; "Life in the camp drained him"
--1 is one way to weaken
Sample sentence:Derived form: noun enfeeblement1
The performance is likely to enfeeble Sue