having succeeded or being marked by a favorable outcome; "a successful architect"; "a successful business venture"
13
happy
experiencing pleasure or joy; "happy you are here"; "pleased with the good news"
4
effective
able to accomplish a purpose; functioning effectively; "people who will do nothing unless they get something out of it for themselves are often highly effective persons..."-G.B.Shaw; "effective personnel"; "an efficient secretary"; "the efficient cause of