1)Riled up – to be very annoyed or angry

 He is still to easily riled by the words and deeds of others.

 2)Impudent – very rude,lacking respect and not polite

 Some of the questions were rather impudent.

 3)Pensive – thinking deeply and quietly about something

 He was in Pensive mood.

 4)Adept – very good or skilful at something

 He is adept in several languages.

 5)Entail – to involve something that can not be avoided

 The job entails a lot of hard work.