lose heart

1. Become discouraged, as in The rescuers worked hard for the first few hours, but then they lost heart. This term uses heart in the sense of “courage” or “spirit.” [Mid-1800s] Also see lose one's heart to.

Example Sentences

Yet, she does not lose heart easily: "Even if the glaciers can't preserve themselves forever, they might still preserve the environment around them for some time. Thus, we call for more multidisciplinary research approaches to converge efforts toward explaining the effects of global warming," she concludes.

From Science Daily

The Archbishop of Canterbury is using his Easter sermons to say "we must not lose heart" over the war in Ukraine or the situation in Israel and Palestine.

From BBC

After Google’s parent, Alphabet, announced the biggest round of job cuts in its history, senior executives of the tech giant spoke before restive employees to explain why the company had laid off 12,000 of their colleagues so abruptly — and why those who remain shouldn’t lose heart.

From New York Times

He told the group’s members not to lose heart.

From Washington Times

Kyiv’s friends would lose heart.

From Seattle Times

Related Words

• brood 
• sulk