IPA: /ˈærɪdɛst/
KK: /ˈɛrɪdɛst/
This word describes the most dry or lacking moisture compared to other places or things.
The aridest regions of the world receive very little rainfall each year.
Comparative: drier
Superlative: aridest
Aredest → It is formed from "arid" (from Latin "aridus", meaning dry) and the superlative suffix "-est" (meaning most). The word "aridest" means the most dry or having the least moisture.
Think of 'arid' meaning dry, and remember that 'aridest' refers to the most dry condition.