nippy (adj.)
- algid
- arctic
- biting
- bitter
- bleak
- boreal
- brisk
- brumal
- burning
- chilly
- cold
- cool
- crisp
- cutting
- frigid
- frosty
- gelid
- glacial
- hibernal
- hiemal
- hot
- ice-cold
- icelike
- icy
- inclement
- keen
- lively
- nipping
- numbing
- penetrating
- peppery
- piercing
- pinching
- racy
- raw
- rigorous
- seasoned
- severe
- sharp
- shivery
- sleety
- slushy
- snappy
- spicy
- stone-cold
- tangy
- wintery
- wintry
- zestful
- zesty
- zippy