悲観する
JN1;JVE
lose heart / be pessimistic about / take a gloomy view / taking a pessimistic view / be disappointed / be discouraged / feel hopeless about *something / losing heart / being pessimistic about / despair / hopelessness / negativity / being pessimistic / take a pessimistic view / taking a gloomy view / being disappointed / being discouraged / be pessimistic / be negative about *something / disappointment / pessimism