Related Clues:
- Hazardous for driving
- Sleet-covered
- Indebted to the pot, in poker lingo
- Slippery, as a road
- Not gregarious
- Hardly convivial
- Unlikely to break the ice
- Lacking self-confidence
- "If looks could kill" type of stare
- Like winter roads
- Reluctant to mingle
- Needing salt, perhaps
- Emotionally distant
- Far from genial
- Wary of people