Wiktionary
inflectionless
a. Without inflection.
Usage examples of "inflectionless".
Andre drew obscure diagrams on the floor over a pentagrammic inscription and Gabrielle read in an inflectionless tongue from a codex of unguessable origin.
They even forgot his insignificant appearance in the virtuosity with which he ran and poised and swooped upon the cold inflectionless wire of his voice, so that at last, when with a sort of swooping glide he came to rest again beside the reading desk with one arm resting upon it at shoulder height and his monkey body as reft of all motion as a mummy or an emptied vessel, the congregation sighed as if it waked from a collective dream and moved a little in its seats.