IPA: /ˈmɛʒ.ər.ləs/
KK: /ˈmɛʒərləs/
Something that is so large or extensive that it cannot be measured or quantified.
The measureless beauty of the night sky left us in awe.
Measureless → It is formed from "measure" (from Old French *mesurer*, meaning to determine the extent or quantity) and "-less" (meaning without). The word "measureless" means without measure or limitless.
Think of the word 'measure' and remember that 'measureless' means without any limits or bounds.