IPA: /ˈstɪkiɪst/
KK: /ˈstɪkɪst/
The most adhesive or tacky; having a high level of stickiness.
The stickiest part of the candy got stuck to my fingers.
Comparative: stickier
Superlative: stickiest
Sticky → It is formed from "stick" (from Old English "stician", meaning to adhere or attach) and the suffix "-y" (meaning characterized by). The word "sticky" describes something characterized by the quality of adhering or attaching. The superlative form "stickiest" indicates the highest degree of this quality.
Think of something that is very good at 'adhering' or 'attaching' — that's what 'stickiest' means, as it describes the most extreme form of being sticky.