IPA: /ˈsiːsləs/
KK: /ˈsiːsləs/
Not stopping; happening all the time without interruption.
The ceaseless noise from the construction site made it hard to concentrate.
Ceaseless → It is formed from "cease" (from Old French *ceser*, meaning to stop or come to an end) and "-less" (meaning without). The word "ceaseless" means without stopping or never coming to an end.
Think of something that never 'stops' ('cease') and is 'without' ('-less') any breaks — that's what ceaseless means.