An example of incapacitate is giving someone a sleeping pill so they're sleepy and not able to drive.
transitive verb-·tat·ed, -·tat·ing
- to make unable or unfit; esp., to make incapable of normal activity; disable
- Law to make ineligible; disqualify
Origin of incapacitateincapacit(y) + -ate
transitive verbin·ca·pac·i·tat·ed, in·ca·pac·i·tat·ing, in·ca·pac·i·tates
- To deprive of strength or ability; disable.
- To make legally ineligible; disqualify.
(third-person singular simple present incapacitates, present participle incapacitating, simple past and past participle incapacitated)
- to make incapable (of doing something)
- The police officer was incapacitated by a blow to the head