aplomb: Meaning and Definition of

a•plomb

Pronunciation: (u-plom', u-plum'), [key]
— n.
  1. imperturbable self-possession, poise, or assurance.
  2. the perpendicular, or vertical, position.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: