complementarity /ˌkɒmpləmɛnˈtæɹɪti/ noun3 •The state or characteristic of being complementary."Synergy is one of the most overused words in the English language, but there is a tremendous complementarity to these organizations." — 1987 •The idea that physical phenomena may have (mutually contradictory) properties that cannot be observed simultaneously (e.g. wave-particle duality). •A semantic relationship between two words wherein negative use of one entails the affirmative of the other with no gradability; the relation of binary antonyms. formscomplementarities
