underlayment

U1N1D2E1R1L1A1Y4M3E1N1T1

noun

Something that is underlaid, such as planking in a room of a house; underlay.

Similar
carpet padrug padunderlay
UncommonScrabble 18
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Meanings

noununderlayment (countable and uncountable, plural underlayments)

plural underlayments

  1. countableuncountableSomething that is underlaid, such as planking in a room of a house; underlay.

Synonyms & antonyms

nouna pad placed under a carpet

Similar
carpet padrug padunderlay
Broader
pad
Also see
underlay

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From underlay + -ment.

Full word history & related roots →
Cite this entry
APA

underlayment. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/underlayment

MLA

“underlayment.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/underlayment. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “underlayment,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/underlayment.

Source: underlayment on Wiktionary, CC BY-SA 4.0.