Antonyms for lighten up

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Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLES FROM THE WEB FOR LIGHTEN UP

Say, Boss, do you want this to lighten up your old freight-train with?

“I must,” said Pen, with what was passing around seeming to lighten up.

But soon after noon it stopped snowing and began to lighten up.

Lighten up at the last moment and recognise for the last time.

She was glad to see him lighten up, and she exerted herself to that end.

"Then I will lighten up, somewhat," replied the other calmly.

As meat and drink and warmth began to permeate the stranger he seemed to expand and lighten up.

Nothing will lighten up a corner better than the hardy oriental Poppy, or the solid crimson or scarlet annual Poppies.

In the camps they served to while away many a weary hour and to lighten up the seriousness of many a knotty problem.

Suddenly the aisle seemed to lighten up; she was gliding along it, beautiful as May, and modesty itself in dress and carriage.

MORE RELATED WORDS FOR LIGHTEN UP

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.