Definition of optimism noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈɒptɪmɪzəm//
; NAmE NAmE//ˈɑːptɪmɪzəm//
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[uncountable] optimism (about/for something) a feeling that good things will happen and that something will be successful; the tendency to have this feeling optimism about/for the future We may now look forward with optimism. a mood of cautious optimism There are very real grounds for optimism. Both sides have expressed optimism about the chances of an early agreement. opposite pessimism Word Originmid 18th cent.: from French optimisme, from Latin optimum ‘best thing’, neuter (used as a noun) of optimus ‘best’.Extra examples Despite the crisis a cautious optimism prevailed. Her optimism turned out to be misplaced. I find it hard to share his optimism. The 1970s began still full of optimism. The government expressed optimism about the success of the negotiations. The news caused a wave of optimism. There are now very real grounds for optimism. There was a note of optimism in his voice. We can look to the future with considerable optimism. When the 1970s began, we were still full of optimism. great optimism for the future renewed optimism among mortgage lenders He returned with renewed optimism about the future. Some people talked of a mood of cautious optimism.
See the Oxford Advanced American Dictionary entry: optimism