1. Without force or sincere effort
   "smiled thinly" 
2. Without viscosity
   - thin 
3. In a small quantity or extent
   "spread the margarine thinly over the meat"
   - lightly 
4. In a widely distributed manner
   "thinly overgrown mountainside"

See also: thin

Antonym: thickly

• rollback
• rolled
• rolled biscuit
• rolled into one
• rolled oats
• roller
• roller bandage
• roller bearing
• roller bit
• roller blind
• roller coaster
• roller skate
• roller skating
• roller towel
• roller-skater
• Rollerblade
• rollerblader
• rollerblading
• rollick
• rollicking
• rollickingly
• rolling
• rolling hitch
• rolling mill
• rolling paper