Assured

adj.capable, calmprofessional

What it means

Calmly confident in manner because one's judgment or ability feels secure.

Reach for it when praising composed confidence visible to other people

His assured explanation steadied the passengers without hiding the delay.

everyday
certain
absence of doubt about a fact or decision is intended
not when Certainty can be mistaken and need not appear calm or skillful.
everyday
confident
belief in ability or judgment is the main quality
not when Confidence can be energetic or loud, while assured suggests composure.
warm
poised
graceful readiness and social control deserve attention
not when Poise emphasizes presentation more than certainty.
warm
secure
stable confidence is protected from ordinary doubt
not when Secure can refer to safety or attachment rather than public manner.
professional
authoritative
command of the subject makes the communication credible
not when Authority can sound dominant when reassurance is the better shade.
professional
composed
emotional steadiness under pressure is the evidence
not when A composed person may still be uncertain about what to do.
professional
polished
practice has made the delivery smooth and refined
not when Polish may conceal uncertainty, so it should not substitute for assurance.
formal
self-assured
stable inner confidence should be explicit
not when The compound can imply a settled personality rather than one assured performance.

assured manner
Her assured manner gave the trainees confidence to try the procedure.
quietly assured
The quietly assured captain checked every voice before deciding.
calm and assured
He remained calm and assured throughout the difficult interview.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.