IPA: /ˈsmɜːrkiər/
KK: /ˈsmɜrkiər/
More inclined to smirk or smile in a smug or self-satisfied way than someone or something else.
He had a smirkier expression than his friend when they won the game.
Comparative: smirkier
Superlative: smirkiest
Smirkier → It is formed from "smirk" (from Middle English *smerke*, meaning a sly or smug smile) and the suffix "-ier" (meaning more). The word "smirkier" means more inclined to smirk or display a smug smile.
Think of someone who is smiling in a sly or smug way ('smirk') and remember that 'smirkier' means someone who smiles that way even more.