IPA: /ˈsɒlɪdɪst/
KK: /ˈsɑlɪdɪst/
The strongest or most firm; having the greatest strength or stability.
This is the solidest building in the city, able to withstand strong earthquakes.
Comparative: solider
Superlative: solidest
Solidest → It is formed from "solid" (from Latin "solidus", meaning firm or whole) and the suffix "-est" (used to form the superlative degree). The word "solidest" means the most firm or whole among a group.
Think of something that is the most 'firm' or 'whole' — 'solid' means firm, and '-est' indicates the highest degree.