Equitable means just, impartial and fair.
Equitable is a adjective.
Synonyms: due, evenhanded, unprejudiced, unbiased, reasonable.
Antonyms: improper, inequitable, unreasonable, unfair, unjust.
I couldn't think of an equitable way to distribute the money, so I decided to donate the money for charity.
The divorce settlement was hardly equitable: Veneala gets to keep the mansion and Two Lakhs in cash; Ravi gets to keep the dog.