contributive

As adjectives the difference between contributive and contributional

is that contributive is tending to contribute; making a contribution while contributional is pertaining to, or furnishing, a contribution.

As a verb contributing

is present participle of lang=en.

As an adjective contributive is

tending to contribute; making a contribution.

As adjectives the difference between auxiliary and contributive

is that auxiliary is helping]]; [[give|giving assistance or support while contributive is tending to contribute; making a contribution.

As a noun auxiliary

is a person or group that acts in an auxiliary manner.

As adjectives the difference between contributive and improving

is that contributive is tending to contribute; making a contribution while improving is getting better.

As a verb improving is

.