Without aim, purpose, or intent
Lacking rational direction or purpose
It was pointless to even consider the idea.
It was pointless to buy a bikini and wear it only once, so Carmen bought a black push-up bra and some skimpy black briefs trimmed with black ribbon.
It was pointless to argue the matter.
She shook her head free of pointless thoughts and began dusting.
It was pointless to leave him a message.