Adjectives

(s)surefooted, sure-footed, footsurenot liable to stumble or fall“on surefooted donkeys”
(s)confident, surefooted, sure-footednot 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)