Chilliest of all
Nippiest is the superlative form of nippy, meaning the coldest or most bitingly cold among a group of things being compared.
In British informal usage, nippy can also mean quick or nimble, making nippiest describe whatever is fastest or most agile: That little hatchback is the nippiest car in its class.
The word appears most often in casual conversation about weather or speed.
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Chilliest of all
Nippiest is the superlative form of nippy, meaning the coldest or most bitingly cold among a group of things being compared.
In British informal usage, nippy can also mean quick or nimble, making nippiest describe whatever is fastest or most agile: That little hatchback is the nippiest car in its class.
The word appears most often in casual conversation about weather or speed.
1. cold — frosty, Cold or unwelcoming; chilly (Moderately cold); biting (Harshly critical or cold); freezing (Extremely cold); icy · frigid · arctic · wintry · brisk · sharp · piercing · crisp · raw · bitter
2. quick — agile, Limber and quick-moving; sprightly (Energetic and nimble); spry (Lively despite years); nimble (Quick and light-moving); swift · snappy · darting · fleet · zippy · brisk · lively · speedy · deft · alert
temperaturenippiest ≠ warmest Superlative of hot-adjacent; hottest · balmiest · mildest · sultriest · toastiest
speed/agilitynippiest ≠ slowest Least rapid of all; sluggish · pokiest · clumsiest · languid · torpid
nippier
Word data: Linguabase (CC0) · www.idea.org/words/nippiest