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opprobrium (n)
opt (v)
opt out (v)
optical (adj)
optical illusion (n)
optical instrument (types of)
optical microscope (n)
optimal (adj)
optimism (n)
optimist (n)
optimistic (adj)
optimistically (adv)
optimize (v)
optimum (adj)
optimum (n)
option (n)
optional (adj)
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optimism (n)
Synonyms: hopefulness, sanguinity, confidence, positiveness, positivity, brightness

Antonym: pessimism


Synonyms: cheerfulness, confidence, assurance, enthusiasm, buoyancy, sunniness

Antonym: pessimism
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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