gainless

As adjectives the difference between gain and gainless

is that gain is (obsolete) straight, direct; near; short while gainless is not producing gain; not bringing advantage; unprofitable.

As a preposition gain

is (obsolete) against.

As an adverb gain

is (obsolete) straightly; quickly; by the nearest way or means.

As a noun gain

is the act of gaining or gain can be (architecture) a square or bevelled notch cut out of a girder, binding joist, or other timber which supports a floor beam, so as to receive the end of the floor beam.

As a verb gain

is to acquire possession of what one did not have before.