confident

adjective

1. 1

   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

2. 2

   persuaded of; very sure

   were convinced that it would be to their advantage to join

   I am positive he is lying

3. 3

   having or marked by confidence or assurance

   a confident speaker

   a confident reply