aplomb Meaning, Definition & Usage

  1. noun great coolness and composure under strain
    sang-froid; cool; poise; assuredness.
    • keep your cool

WordNet


A`plomb" noun
Etymology
F., lit. perpendicularity; to + plomb lead. See Plumb.
Definitions
  1. Assurance of manner or of action; self-possession.

Webster 1913