Related Clues:
- Immovable type
- Noticeably unfriendly
- Not at all friendly
- Undemonstrative to the max
- Covered in frost
- Hard of heart
- Not offering traction, in a way
- Very unfriendly
- Sniffles may be part of it
- Dispassionate person
- Very standoffish
- Seneca, for one
- Extremely hostile, as a glare
- Unemotional thinker
- Like some winter roads