expectation

mastery
/ˌɛk.spɛkˈteɪ.ʃən/noun

card 1 of 10 · synonym

Which word is closest in meaning to 'expectation' in this sentence?

Thus the B.R. diesel fleet today is composed of a rather assorted collection of designs. Some have proved to be remarkably satisfactory in service; others have so far not come up to expectations.