promissive adjective 2noun 1forms 3 adjective2 •Making or implying a promise; promising.The group of substnces which binds and effects the physiology of the biomembrane is promissive in relation with its effect against cancer, on immune system, cell differentiation and aging. — 1977 •Implying that the speaker intends to do something or guarantees something.Changing the expression—shall is predictive, and will is promissive in the first person only; whereas, in the second and third, will is predictive, and shall promissive. — 1862 noun1 •A promissive mood, phrase, word, or inflection.The answer to the first question is negative: yídìng cannot express strong epistemic necessity in an imprative or a promissive. — 2018 formspromissives · more promissive · most promissive