Antonyms for confidence

belief in oneself:

timidity, doubt, cowardice, uncertainty, hesitation, weakness, apprehension, distrust, irresolution, fear, Unconfidence.

belief in something:

misgiving, disbelief.

feeling:

diffidence.

in confidence:

openly.

noun:

dubiousness, disenchantment, insecurity, disillusion, indecisiveness, consternation, disillusionment, uncertainness, open secret, dismay, confusion, bashfulness.