not varying; constant
Neither covariant nor contravariant.
Unaffected by a specified operation (especially by a transformation)
An invariant quantity, function etc.
said of a function that either never decreases or never increases as its independent variable increases.
Uttered in a monotone; monotonous.
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.