monotonic

Of or using the Greek system of diacritics which discards the breathings and employs a single accent to indicate stress. It replaced polytonic system in 1982.

Of a function: that either never decreases or never increases as its independent variable increases.

Uttered in a monotone; monotonous.

The Same Spade talk-alike, super-cynical heroine of the piece is named Emma Victor, and there's no end to her rapid-fire, monotonic, street-smart patter.