twistfree

As an adjective twistfree is

free of twists.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective twistfree is

free of twists.

As adjectives the difference between free and twistfree

is that free is (label) unconstrained while twistfree is free of twists.

As an adverb free

is without needing to pay.

As a verb free

is to make free; set at liberty; release; rid of that which confines, limits, embarrasses, or oppresses.

As a noun free

is (australian rules football|gaelic football) abbreviation of free kick.