IPA: //ˈbrʌskɪst//
KK: /brʌskɪst/
The most abrupt or blunt in manner or speech, often to the point of being rude or unfriendly.
His bruskest response left everyone in the room feeling uncomfortable.
Comparative: brusker
Superlative: bruskest
Bruskest is derived from the word 'brusque' (from French 'brusque', meaning blunt or abrupt) with the superlative suffix '-est' (indicating the highest degree). The term 'bruskest' refers to the most blunt or abrupt manner of speaking or behaving.
Think of 'brusque' meaning blunt or abrupt, and remember that 'bruskest' describes the highest degree of being blunt.