1. A text or written work of significant length, importance, or content; a document or piece of writing that contains meaningful or weighty information
The researcher provided a substantial text on medieval history.
O pesquisador forneceu um texto substancial sobre história medieval.
2. Written material that is comprehensive and thorough rather than superficial or brief
The judge required a substantial text explaining the defendant's position.
O juiz exigiu um texto substancial explicando a posição do réu.