IPA: /əbˈskjʊrɪst/
KK: /əbˈskjʊrɪst/
The least known or understood; not clear or easily seen.
The obscurest details of the story were revealed in the final chapter.
Comparative: more obscure
Superlative: most obscure
Obscurest → It is formed from "obscurus" (from Latin, meaning dark or dim) and the superlative suffix "-est" (meaning most). The word "obscurest" means the most dark or least clear.
Think of something that is the "most dark" or "least clear" — that's what obscurest means.
No commonly confused words.