1. In a shrill voice
   "she sang rather shrilly"
   - piercingly

See also: shrill

• flaw
• flawed
• flawless
• flawlessly
• flawlessness
• flax
• flax family
• flax rust
• flax rust fungus
• Flaxedil
• flaxen
• flaxseed
• flaxseed oil
• flay
• flea
• flea beetle
• flea bite
• flea market
• flea-bitten
• fleabag
• fleabane
• fleapit
• fleawort
• flecainide
• fleck