1. He's so annoying that nobody wants to talk to him.2. He's being a nuisance by always asking people for help.
 obnoxious; annoying (noun) nuisance普遍又好用.
1. 他很討人厭, 大家都不想跟他說話.2. 他總需要別人幫忙很討人厭.< >
It gives the illusio that you've computed the entire answer immediately.