IPA: /ˈsaɪtliər/
KK: /ˈsaɪtliər/
More attractive or pleasing in appearance than something else.
The garden looked sightlier after the flowers bloomed.
Sightlier → It is formed from "sight" (from Old English "sīht", meaning the ability to see) and "-lier" (a comparative suffix indicating more). The word "sightlier" means more capable of being seen or more visually appealing than something else.
Think of 'sight' as the ability to see, and remember that 'sightlier' means something is more pleasing to the eye.