1. With unconditional and enthusiastic devotion
   "demonstrated his whole-souled allegiance"
   - heart-whole, wholehearted

See also: sincere

• slippery elm
• slippery slope
• slipping
• slippy
• slipshod
• slipskin grape
• slipstick
• slipstream
• slipway
• slit
• slit lamp
• slit trench
• slither
• slithering
• slithery
• sliver
• slivery
• slivovitz
• Slo-Bid
• Sloane Ranger
• Sloanea
• Sloanea jamaicensis
• slob
• slobber
• slobber over