Lacking self-confidence. Synonyms:diffident, shy, timid."Problems that call for bold not timid responses" , "A very unsure young man"
2.
Lacking or indicating lack of confidence or assurance. Synonyms:incertain, uncertain."Unsure of himself and his future" , "Moving with uncertain (or unsure) steps" , "An uncertain smile" , "Touched the ornaments with uncertain fingers"
... scorched veins of one new-burn'd. It is religion that doth make vows kept; But thou hast sworn against religion, By what thou swear'st against the thing thou swear'st; And mak'st an oath the surety for thy truth Against an oath: the truth thou art unsure To swear, swears only not to be forsworn; Else what a mockery should it be to swear! But thou dost swear only to be forsworn; And most forsworn, to keep what thou dost swear. Therefore thy latter vows ... — King John • William Shakespeare [Collins edition] Read full book for free!
... believe? One conclusion may, at least, be rested in: a man's true success must not be estimated by things done, which had their price in the world; but by that which the world's coarse thumb and finger failed to plumb; by his immature instincts and unsure purposes which weighed not as his work in the world's estimation, yet went toward making up the main amount of his real worth; by thoughts which could not be contained in narrow acts, by fancies which would not submit to the bonds of language; by all that he strived after and could not ... — Introduction to Robert Browning • Hiram Corson Read full book for free!