coolest
adj. A2 Elementary US //ˈkuɫəst// UK //kˈuːləst// coolest
adj. the most impressive, fashionable, or popular thing in a group. It can also describe the lowest temperature compared to others.
adj. the superlative form of 'cool', indicating the highest degree of being fashionable, impressive, or low in temperature.
He has the coolest car in the whole school.
The tech company just released their coolest gadget yet, featuring a screen that can fold in half.
While the morning was chilly, the shaded valley remained the coolest part of the trail throughout the entire afternoon hike.
Usage
Superlative form; always preceded by the definite article 'the' when used as a modifier.
Pitfall
the most coolestthe coolest'Cool' is a one-syllable adjective, so it uses the '-est' suffix rather than 'most' to form the superlative.