- - Less predictable
- - Less assured
- - Less clear-cut
- - Less certain
- - Not as certain
- - More risky
- - Drive's opening more frozen and more dangerous
- - End of road more affected by freeze, hence more dangerous
- - More problematic
- - More touch-and-go
- - More unpredictable
- - More problematical
- - More chancy
- - more fraught
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