Felt knowledgeable (11)
I believe the answer is:
experienced
I believe this is a double definition.
'felt' is the first definition.
('experience' can be a synonym of 'feel')
'knowledgeable' is the second definition.
(thesaurus)
(Other definitions for experienced that I've seen before include "went through" , "Practised, well-versed" , "Practised and knowledgeable" , "Having much accumulated knowledge" , "Having wisdom gained through practice" .)