assured UK /əˈʃʊəd/US /əˈʃʊɹd/adjective 3noun 1forms 3phrases 1 adjective3 •Guaranteed; secure. •Self-confident; self-assured; sure.Youngster Townsend caught the eye on the wing, with his fantastic goal capping a classy performance, while Danny Rose continued his rapid development with an assured display at full-back. — 2011 •(no longer used) Reliable, confirmed.What thinkst thou man, shal come of our attempts? For euen as from assured oracle, I take thy doome for satisfaction. — 1587 noun1 •An insured person. formsassureds · more assured · most assured Phrases with assured rest assuredBe sure; not need to worry; trust.