这一反对意见强有力，需要详细回应。

The objection is ___formidable and requires a detailed response.

这位科学家在学术界是一位令人敬畏的人物。

The scientist is a ___formidable figure in the academic world.

这支球队防守严密，对手面临着一个艰巨的挑战。

The team's strong defense presents a ___formidable challenge for their opponents.