IPA: /ˈblæŋkɪst/
KK: /blæŋkɪst/
The most empty or devoid of content or markings.
The blankest page in the notebook was perfect for drawing.
Comparative: blanker
Superlative: blankest
Blankest → It is formed from "blank" (from Old French *blanc*, meaning white or shining) and the superlative suffix "-est" (meaning most). The word "blankest" means the most empty or devoid of content, akin to a white or unmarked surface.
Think of something that is 'white' or 'empty' ('blank') and then consider that 'blankest' means the most empty or unmarked.