WordWeb Online

1. (medicine) not indicating the presence of microorganisms, disease or a specific condition
   - negative
    
2. Establishing as invalid or untrue
   - invalidating, confutative

1. Establish or strengthen as with new evidence or facts
   "his story confirmed my doubts";
   - corroborate, sustain, substantiate, support, affirm
    
2. Strengthen or make more firm
   "Confirm thy soul in self-control!"; "The witnesses confirmed the victim's account";
   - reassert
    
3. Support a person for a position
   "The Senate confirmed the President's candidate for Secretary of Defense"
    
4. (religion) administer the rite of confirmation to
   "the children were confirmed in their mother's faith"

See also: Gram-negative, unsupportive

Type of: affirm, approve, beef up, covenant, fortify, O.K., OK, okay, sanction, strengthen

Encyclopedia: Confirm