confident

Adjective

• not liable to error in judgment or action
  • most surefooted of the statesmen who dealt with the depression- Walter Lippman
    
  • demonstrates a surefooted storytelling talent- Michiko Kakutani
    

• persuaded of; very sure
  • were convinced that it would be to their advantage to join
    
  • I am positive he is lying
    
  • was confident he would win
    

• having or marked by confidence or assurance
  • a confident speaker
    
  • a confident reply
    
  • his manner is more confident these days
    
  • confident of fulfillment
    

Related words

• Synonyms: 
  surefooted , sure-footed , convinced(p) , positive(p) , confident(p)
• Antonyms: 
  diffident , shy , timid , unsure