noun / verb
handicap
HAN-dee-kap/ˈhændikæp/
A disadvantage that increases the difficulty of success.
The heavy pack is a handicap for one hiker on the slope.

Etymology
“Hand in cap” named a betting game in which an umpire set the odds. Its name passed to extra weight imposed on superior racehorses, then to a disadvantage that makes success harder.
In context
wouldn't have one arm instead of two? But that's not the theme of the narrative. The narrative is about this person who has a handicap needs to work within this handicap in order to achieve what they want to do.
More examples
- Limited funding handicaps our research team.
- Her lack of experience is a handicap in job interviews.
- The stronger player accepts a handicap to keep the match fair.
Forms
handicap · handicaps · handicapped · handicapping
Similar words
- disadvantage
- A broader term for any unfavorable condition or position.
- hindrance
- Emphasizes something that slows progress or interferes with action.
- obstacle
- Usually identifies a specific barrier that must be overcome.