1. lacking assistance, help, or backing from others
He had to face the challenge without support from his family.
Ele teve que enfrentar o desafio sem apoio de sua família.
2. unsupported; without structural or physical support
The shelf collapsed because it was installed without support.
A prateleira desabou porque foi instalada sem apoio.
3. without evidence, proof, or justification
His claims are without support in the scientific literature.
Suas alegações são sem apoio na literatura científica.