IPA: /ˈpɜːrpəs.ləs/
KK: /ˈpɜr.pəs.ləs/
Not having a specific goal or intention; lacking meaning or direction.
He felt his actions were purposeless and did not contribute to his happiness.
Purposeless → It is formed from "purpose" (from Old French *porpos*, meaning intention or aim) and "-less" (meaning without). The word "purposeless" means without purpose or aim.
Think of having no intention or aim when you hear "purposeless" — it directly connects to being without a purpose.