1. having no meaning or significance; devoid of purpose or importance
The conversation was completely meaningless and a waste of time.
A conversa foi completamente sem sentido e uma perda de tempo.
2. lacking intelligibility or clarity; unintelligible
His mumbling was meaningless to everyone in the room.
Seu murmúrio era ininteligível para todos na sala.
3. not having a serious, important, or useful quality
These are just meaningless gestures with no real commitment.
Estes são apenas gestos vazios sem comprometimento real.