uninflected

un in flect ed |ˌəninˈflektid ˌənənˈflɛktəd | ▶adjective 1 Grammar (of a word or a language ) not undergoing changes to express grammatical functions or attributes: English is largely uninflected. 2 not varying in intonation or pitch: her voice was flat and uninflected.

uninflected

un |inflect ¦ed |ʌnɪnˈflɛktɪd | ▶adjective 1 Grammar (of a word or a language ) not undergoing changes to express particular grammatical functions or attributes: English is largely uninflected. 2 not varying in intonation or pitch: her voice was flat and uninflected.