IPA: /ˈdɪn.dʒi.ɪst/
KK: /ˈdɪn.dʒi.ɪst/
The most dirty, dull, or shabby in appearance.
The dingiest room in the hotel had peeling paint and a musty smell.
Comparative: dingier
Superlative: dingiest
Dingiest → It is formed from "dingy" (from the Middle English *dingy*, meaning dark or dirty) and the suffix "-est" (meaning the most). The word "dingiest" means the most dark or dirty in appearance.
Think of something that looks the 'darkest' or 'dirtiest' — 'dingy' refers to a lack of brightness, and '-est' indicates the highest degree.