IPA: /ˈkræɡiɪst/
KK: /ˈkræɡiɪst/
Having many steep rocks or cliffs; very rugged and uneven in appearance.
The craggiest mountains in the region are popular among climbers.
Comparative: craggier
Superlative: craggiest
Craggiest is formed from "crag" (from Old Norse "kragi", meaning a steep or rugged cliff) and the suffix "-iest" (meaning most). The word "craggiest" describes something that has the most crags or is the most rugged in appearance.
Think of a steep cliff ('crag') that is very rugged and rough, and remember that 'craggiest' means the most rugged or steep.