Synonyms to opportunism

occasion, a leg up, advantage, adventure, affair, antecedent, antecedents, author, bare necessities, base, basis, bear, beget, break, breed, bring about, bring forth, bring on, bring to effect, bring to pass, call, call for, call forth, call up, causation, cause, cause and effect, celebration, ceremony, chance, circumstance, clear stage, commemoration, conceive, condition, conjuncture, contingency, create, demand, demand for, desideration, desideratum, determinant, determinative, do, effect, effectuate, element, elicit, engender, episode, essential, essentials, establish, etiology, event, eventuality, evoke, excuse, experience, fact, factor, fair field, fair game, father, found, foundation, function, gala, generate, gestate, give birth to, give occasion to, give origin to, give rise to, go, ground, grounds, hap, happening, happenstance, impel, impulse, inaugurate, incident, incitement, indispensable, induce, inducement, institute, juncture, justification, liberty, look-in, make, make for, matter of fact, milestone, moment, must, must item, necessaries, necessities, necessity, need, need for, obligation, observance