Synonyms for Overconfident:

• adj.

  •assumptive (adjective)
  • over bearing,
  • Over-bearing.
  •assured (adjective)
  • self possessed,
  • most certain,
  • un-hesitating,
  • most poised,
  • un flappable,
  • over confident,
  • selfconfident,
  • more poised,
  • more positive,
  • un hesitating,
  • selfpossessed,
  • puffed up,
  • up beat,
  • self confident,
  • un-flappable.
  •cocky (adjective)
  • most hotdogger,
  • more hotdogger.
  •cocky/cocksure (adjective)
  • more swollen-headed,
  • more hubristic,
  • over weening,
  • over-weening,
  • more know-it-all,
  • most hotshot,
  • most know-it-all,
  • most swaggering,
  • smartiest,
  • swollen-headed,
  • more swollen headed,
  • more hotshot,
  • swollenheaded,
  • most swollen-headed,
  • more hotdogging,
  • most know it all,
  • most swollenheaded,
  • more swollenheaded,
  • hubristic,
  • swollen headed,
  • most hubristic,
  • most swollen headed,
  • overweening,
  • more swaggering,
  • smarty pants,
  • most hotdogging,
  • more know it all,
  • smartier,
  • know it all.
  •malapert (adjective)
  • dis-respectful,
  • most offbase,
  • most off base,
  • most overbold,
  • more procacious,
  • un blushing,
  • un-blushing,
  • dis respectful,
  • over bold,
  • flippest,
  • over-bold,
  • more overbold,
  • most procacious,
  • Procacious,
  • un-abashed,
  • more off-base,
  • most off-base,
  • un abashed,
  • more offbase,
  • more off base,
  • offbase.
  •overly sure of oneself (adjective)
  • rash,
  • heading for a fall,
  • self-assertive,
  • heedless,
  • foolhardy,
  • reckless,
  • careless.
  •presumptuous (adjective)
  • pre sumptuous,
  • self assertive,
  • selfsatisfied,
  • most overfamiliar,
  • in-solent,
  • in solent,
  • self satisfied,
  • up pity,
  • over familiar,
  • over-familiar,
  • more overfamiliar,
  • up-pity,
  • pre-sumptuous,
  • selfassertive.
  •self-assured (adjective)
  • sure oneself,
  • self assured,
  • full oneself,
  • un afraid,
  • sure of oneself,
  • un-afraid,
  • selfassured,
  • full of oneself.
  •self-confident (adjective)
  • self-assured.
  •smart-alecky (adjective)
  • smartalecky.

• n.

  •
  • egocentric,
  • superior,
  • arrogant,
  • conceited,
  • self-opinionated,
  • proud,
  • vain,
  • patronizing,
  • immodest,
  • self-satisfied.
  •
  • courtesy,
  • brazen,
  • audacious,
  • insolent,
  • fresh,
  • pert,
  • bold,
  • forward,
  • smart,
  • flip,
  • Familiar,
  • attitude,
  • brash.
  •cocky (noun)
  • cocky.
  •confident (noun)
  • confident.

• Other synonyms:

  •
  • contumelious,
  • sassy,
  • pushy,
  • cheeky.
  •
  • egotistic,
  • uppity,
  • assuming,
  • brassy,
  • presumptuous,
  • nervy,
  • snippy,
  • impudent,
  • impertinent,
  • saucy.
  •
  • wise.

Antonyms for Overconfident:

• adj.

  • overly sure of oneself
    modest, pessimistic, humble.
  • Other antonyms:
    sensible, prudent, guarded, craven, shy, chickenhearted, levelheaded, sharp, lily-livered, mousy, yellow, recreant, scary, careful, unheroic, alert, fearful, intelligent, calm, unsure, dastardly, cool, quick-witted, safe, heedful, pusillanimous, unadventurous, circumspect, skittish, wary, cowardly, timid, spineless, fainthearted, cautious, unambitious, chicken, timorous.