unvariable

As adjectives the difference between unchanging and unvariable

is that unchanging is remaining constantly unchanged while unvariable is (obsolete) invariable.

As adjectives the difference between unvarying and unvariable

is that unvarying is persistent, constant or changeless while unvariable is invariable.

As a noun terms

is .

As an adjective unvariable is

(obsolete) invariable.

As adjectives the difference between unvariable and univariable

is that unvariable is invariable while univariable is involving a single variable.

As adjectives the difference between unvariable and invariable

is that unvariable is invariable while invariable is not variable; unalterable; uniform; always having the same value.

As a noun invariable is

something that does not vary; a constant.