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inundate

American  
[in-uhn-deyt, -uhn-] / ˈɪn ənˌdeɪt, -ʌn- /

verb (used with object)

inundated, inundating
  1. to flood; cover or overspread with water; deluge.

  2. to overwhelm.

    inundated with letters of protest.

    Synonyms:
    glut

inundate British  
/ ˈɪnʌnˌdeɪt /

verb

  1. to cover completely with water; overflow; flood; swamp

  2. to overwhelm, as if with a flood

    to be inundated with requests

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

See flood.

Other Word Forms

  • inundant adjective
  • inundation noun
  • inundator noun
  • inundatory adjective

Etymology

Origin of inundate

First recorded in 1615–25; from Latin inundātus, past participle of inundāre “to flood, overflow,” equivalent to in- in- 2 + und(a) “wave” + -ātus -ate 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Mr Weston said "prolonged wet weather meant further rain had nowhere to go other than to inundate our ageing and fragile sewer network".

From BBC • Jul. 15, 2025

“We just kind of inundate her with support, but her son wants his dad back,” said Tucker.

From Los Angeles Times • Jun. 22, 2025

Runner-Up: I also let Instagram totally inundate me with border collie videos.

From Slate • Dec. 28, 2024

Another 18 rivers were experiencing moderate flooding, which can inundate some structures and may lead to evacuations.

From New York Times • May 5, 2024

It took about twenty minutes for the spindrift to inundate my bivvy sack—a thin nylon envelope shaped exactly like a Baggies sandwich bag, only bigger—to the level of the breathing slit.

From "Into the Wild" by Jon Krakauer