1. A proposal or offer that appears dishonest, illegal, or morally questionable
The investor rejected the shady proposal because it involved hidden fees and unclear terms.
O investidor rejeitou a proposta suspeita porque envolvia taxas ocultas e termos pouco claros.
2. A business or personal offer that lacks transparency and may involve fraud or deception
He refused to participate in that shady proposal to avoid legal troubles.
Ele recusou participar daquela proposta suspeita para evitar problemas legais.