IPA: /ˈwɔːtərləs/
KK: /ˈwɔːtərləs/
Having no water or being dry; not needing water for a particular purpose.
The waterless desert was home to many unique plants and animals.
Waterless → It is formed from "water" (from Old English *wæter*, meaning liquid that falls as rain or is found in rivers and lakes) and "-less" (meaning without). The word "waterless" means without water or lacking water.
Think of being 'without' ('-less') the essential 'liquid' ('water') — that's why waterless means lacking water.