1. makes unsuitable or incapable for a particular purpose or task
Usage: third person singular present tense of ‘unfit’

Examples

• The injury unfits him for military service.
• Poor eyesight unfits her for the pilot position.
• His lack of experience unfits him for the leadership role.
• The scandal unfits the candidate for public office.
• Age unfits the athlete for competitive sports.
• The damage unfits the building for occupancy.