IPA: /ˈhɪndmoʊst/
KK: /hɪndˈmoʊst/
The one that is located at the back or furthest away from the front.
In the race, he finished in the hindmost position, far behind the others.
Hindmost → It is formed from "hind" (from Old English "hind", meaning back or rear) and "most" (from Old English "mōst", meaning greatest or most). The word "hindmost" refers to the position that is furthest back or at the rear.
Think of the word 'hind' meaning back, and 'most' meaning greatest — so 'hindmost' describes the greatest distance to the back.