IPA: /ˈmæs.i.ɪst/
KK: /ˈmæs.i.ɪst/
Having the greatest mass or weight; the heaviest or most substantial in terms of physical bulk.
The massiest object in the universe is a black hole.
Comparative: massier
Superlative: massiest
Massiest → It is formed from "mass" (from Latin "massa", meaning a lump or mass) and the suffix "-iest" (meaning the most). The word "massiest" means having the most mass or being the heaviest in terms of mass.
Think of 'mass' as a lump or weight, and remember that 'massiest' means the one with the most weight or bulk.