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put a damper on

Discourage, dishearten, deter, as in Grandpa's death put a damper on our Christmas holidays. This idiom employs the noun damper in the sense of “something that damps or depresses the spirits,” a usage dating from the mid-1700s.

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The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

Related Words for put a damper on

discourage, dishearten, grieve, dispirit, hinder, prevent, avert, prohibit, intimidate, frighten, preclude, stop, daunt, impede, forestall, dissuade, restrain, obstruct, scare, block