IPA: /ˈplɛzəntər/
KK: /ˈplɛzəntər/
More enjoyable or agreeable than something else.
The weather today is pleasanter than it was yesterday.
Pleasanter → It is formed from "pleasant" (from Old French *plaisant*, meaning pleasing or agreeable) and the comparative suffix "-er" (meaning more). The word "pleasanter" means more pleasing or agreeable than something else.
Think of something that is 'more pleasing' — 'pleasant' describes something agreeable, and adding '-er' indicates a comparison.