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over-optimistic
01
過度に楽観的, あまりにも楽観的
(of a person) being unreasonably confident or hopeful that something will succeed or happen
02
過度に楽観的な, 過剰に楽観的な
showing unreasonable confidence or hopefulness for the occurrence or success of something, even though the opposite is proved to be the case by later events
over-optimistic
adj
