tangential

As adjectives the difference between discursive and tangential

is that discursive is tending to digress from the main point; rambling while tangential is referring to a tangent, moving at a tangent to something.

As adjectives the difference between radial and tangential

is that radial is arranged like rays that radiate from, or converge to a common centre while tangential is referring to a tangent, moving at a tangent to something.

As a noun radial

is a radial tire / radial tyre.

As an adjective tangential

is referring to a tangent, moving at a tangent to something.

As a noun digression is

a departure from the subject, course, or idea at hand; an exploration of a different or unrelated concern.

is likely misspelled.

has no English definition.

As an adjective tangential

is referring to a tangent, moving at a tangent to something.

As adjectives the difference between superficial and tangential

is that superficial is shallow, lacking substance while tangential is referring to a tangent, moving at a tangent to something.

As a noun superficial

is (chiefly in plural) a surface detail.

As an adjective tangential is

referring to a tangent, moving at a tangent to something.

As adjectives the difference between tangental and tangential

is that tangental is an alternative spelling of tangential while tangential is referring to a tangent, moving at a tangent to something.

As adjectives the difference between tangential and peripheral

is that tangential is referring to a tangent, moving at a tangent to something while peripheral is on the periphery or boundary.

As a noun peripheral is

a device, such as a printer or scanner, connected to a computer.

As a noun taxonomy

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

As an adjective tangential is

referring to a tangent, moving at a tangent to something.

As adjectives the difference between tangential and circumspect

is that tangential is referring to a tangent, moving at a tangent to something while circumspect is carefully aware of all circumstances; considerate of all that is pertinent.