astrictive adjective 4noun 1forms 3 adjective4 •binding; astringent •Constricting; providing limits or strictures.Other astrictive properties, such as upper bound, lower bound, and tight bounds can also be achieved in S-PIM, by devising properly a strain construction scheme. — 2013 •Without constriction or strictures.Beside, it is not likely that the law meant there should be such a narrow search and examination in this case, being a law astrictive and preceptive. — 1878 •Lacking striae.Hustedt also described these types. Both ends are slightly astrictive. — 1963 noun1 •An astringent. formsastrictives · more astrictive · most astrictive