Counter-vailing, defined as a force that opposes an action or another force, has a few antonyms that can be used to convey the opposite meaning. These antonyms include reinforcing, aiding, abetting, supporting, and facilitating. Reinforcing suggests that the action or force is being strengthened and made more effective. Aiding and abetting implies supporting an action or force in a positive way. Supporting suggests that the action or force is being held up or propped up by another. Facilitating suggests that an action or force is being helped along or made easier. These antonyms can be used to convey positive connotations and a more supportive tone.