Collocations for successful - adj.

be, prove, seem | become

astonishingly, enormously, extremely, highly, hugely, outstandingly, particularly, phenomenally, remarkably, spectacularly, very
his phenomenally successful period as manager

not entirely
Their attempts had not been entirely successful.

fairly, moderately, partially, quite, rather, relatively
The operation was only partially successful.

academically, commercially, politically
a politically successful manoeuvre

at
Though a top-rated movie star he has been remarkably successful at keeping his private life private.

in
hoping their party would be successful in the elections