verb (used with object), re·but·ted, re·but·ting.
verb (used without object), re·but·ted, re·but·ting.
Origin of rebut
Related formsre·but·ta·ble, adjectiveun·re·but·ta·ble, adjectiveun·re·but·ted, adjective
Examples from the Web for rebuttable
The presumption is rebuttable but absent judicial or attorney error, it's almost impossible.4 Reasons Oscar Pistorius Might Be Found Not Guilty|Eboni K. Williams|March 6, 2014|DAILY BEAST
The rebuttable presumption in her favor has not been rebutted to date.
But there is a presumption which is not rebuttable with regard to the mens rea of the vessel.International Law. A Treatise. Volume II (of 2)|Lassa Francis Oppenheim