1. With unconditional and enthusiastic devotion
   "heart-whole friendship"
   - wholehearted, whole-souled

See also: sincere

• flatiron
• flatlet
• flatly
• flatmate
• flatness
• flats
• flatten
• flatten out
• flattened
• flattening
• flatter
• flatterer
• flattering
• flatteringly
• flattery
• flatting
• flattish
• flattop
• flatulence
• flatulency
• flatulent
• flatus
• flatus-relieving
• flatware
• flatwork