accomplishing a desired aim or result.
synonyms: victorious, triumphant; More
fortunate, lucky
antonyms: unsuccessful
synonyms: prosperous, affluent, wealthy, rich, well-to-do, doing well, moneyed; More
famous, eminent, at the top, top;
informalon the up and up, well heeled, flush, rolling in it, in the money, made of money,

flourishing, thriving, booming, buoyant, burgeoning, doing well, profitable, profit-making, moneymaking, lucrative, gainful, fruitful, solvent.

Adj. Something that is expected to have a long lifespan by virtue of having existed for a long time, based on the lindy effect, named for the New York restaurant Lindy's, coined by Albert Goldman and popularized by Nassim Taleb.