Guaranteeing or guarantying. present participle of guarantee 2. to serve as a warrant or guaranty for. 3. Synonyms for GUARANTEEING: assuring, certifying, bonding, pledging, contracting, warranting, guarantying, insisting; Antonyms of GUARANTEEING: undermining, weakening, enfeebling, minimizing, ignoring, disregarding, neglecting, overlooking GUARANTEE definition: a promise or assurance, especially one in writing, that something is of specified quality, content, benefit, etc. guarantee something Basic human rights, including freedom of speech, are now guaranteed. 2. And it is in guaranteeing the veracity of our clear and distinct conceptions that the value of his deduction of God seems in his own estimate to rest. . She had no way of guaranteeing him that something she'd done wouldn't return to make them both miserable. This term is often used in legal and financial settings where one party promises to take responsibility for the obligations of another. aiink efmdz bffl uogyi gqoe bzge erspho nyrpkh erg qtxr