Related Clues:
- Least likely to mix
- Slipperiest
- Most mousy
- Most frigid
- The most reserved call for silence? Certainly, it's time!
- Most reticent
- Least assertive
- Most slippery, in a way
- Most slick, in a way
- At the extreme of retiring
- Most coquettish
- In France, here is the most remote
- Most slippery, as roads
- Most like a shrinking violet
- Most bone-chilling