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optimist

[op-tuh-mist] /ˈɒp tə mɪst/
noun
1.
an optimistic person.
2.
a person who holds the belief or the doctrine of optimism.
Origin
1760-1770
1760-70; < French optimiste < Latin optim(um) (see optimum) + French -iste -ist
Related forms
antioptimist, noun, adjective
overoptimist, noun
superoptimist, noun
Can be confused
cynic, optimist, pessimist, skeptic.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Word Origin and History for overoptimist

optimist

n.

1759, from French optimiste (1752); see optimism + -ist.

Online Etymology Dictionary, © 2010 Douglas Harper
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