cloud over

Idioms  

1. Also, cloud up.

2. Become overcast with clouds, as in It's clouding over now, so it may rain soon , or It was too hot and sunny, but after a while the sky clouded up and we ventured outside . [Mid-1700s]

3. Become opaque, misty, or dim, as in I'm sweating so much that my eyeglasses are clouded over .

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Example Sentences

The mood on the convention floor was noticeably more upbeat than a year ago, when the spectre of tariffs cast clouds over the event.

From The Wall Street Journal

Instead of directly modeling their behavior, researchers use trial and error to come up with plausible values for key parameters—the rate at which clouds over the ocean turn to rain, say.

From The Wall Street Journal

If there is a high amount, the ice can cloud over, but if the amount is too low, the ice will not bond and can break apart.

From BBC

Also clouding over Oracle shares is the fear that people will be able to use artificial intelligence to “vibe code” replacements for traditional enterprise software.

From MarketWatch

Italy captain Wayne Madsen suffered a dislocated shoulder on Monday to cast a cloud over their "emotional" T20 World Cup debut which ended in a heavy defeat to Scotland.

From Barron's

Related Words

• blacken
• conceal
• darken
• dim
• mute
• obscure
• shield