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pessimism; (taking a) gloomy view; discouragement; despondency; despair; disappointment
彼は将来を悲観して希望を失っていた。
He was pessimistic about the future and had lost hope.
悲観的な考え方では問題は解決しない。
A pessimistic way of thinking will not solve problems.
状況を悲観せずに前向きに取り組もう。
Let us approach things positively without being pessimistic.