Entry 1 sense Webster, 1913 Stentorian · Sten·to·ri·an · IPA /stɛnˈtɔː.ɹi.ən/ 01 a. Of or pertaining to a stentor; extremely loud; powerful; as, a stentorian voice; stentorian lungs. 1. Of or pertaining to a stentor; extremely loud; powerful; as, a stentorian voice; stentorian lungs.