1. (a.) Tending to strengthen of confirm.

2. (n.) A medicine that strengthens; a corroborant.

advocating approving back of backing bearing behind bolstering bracing burdened buttressing carrying confirmative confirmatory confirming corroborating corroborative corroboratory favorable favoring holding in support of maintaining pro propping shoring substantiating supportive suspensory sustaining sustentative upholding verificative verifying well-disposed well-inclined