Definition of sure of oneself in US English:

sure of oneself

phrase

  • Very confident of one's own abilities or views.

    ‘he's very sure of himself’
    • ‘Since they are all so sure of themselves and so confident in their intuition and hunches, they seldom stop and analyze those on-the-spot decisions they so often make.’
    • ‘I think I am reminding myself of what it feels like to feel attractive, confident, sure of myself.’
    • ‘Quite confident and sure of himself, Himanshu knows his heart and most importantly knows that it speaks the truth.’
    • ‘Among the better Christmas presents would be a more vigorous parliament, sure of itself and its abilities and working all the time for a better Scotland.’
    • ‘If you have a high level you will be confident, happy and sure of yourself.’