1. A reply or response that is uncertain, ambiguous, or lacks confidence; an answer that raises questions about its accuracy or truthfulness
His doubtful answer to the direct question suggested he was hiding something.
Sua resposta duvidosa à pergunta direta sugeriu que ele estava escondendo algo.
2. An answer that is questionable or open to interpretation; a response that does not clearly resolve the matter at hand
The witness gave a doubtful answer when asked about the suspect's whereabouts.
A testemunha deu uma resposta duvidosa quando perguntada sobre o paradeiro do suspeito.