underneath

1 of 2

preposition

un·​der·​neath ˌən-dər-ˈnēth 

1

a

: directly beneath

write the date underneath the address

b

: close under especially so as to be hidden

treachery lying underneath a mask of friendliness

wore a swimsuit underneath his slacks

2

: under subjection to

underneath

2 of 2

adverb

1

: under or below an object or a surface : beneath

2

: on the lower side

underneath adjective

Synonyms

Adverb

• beneath
• under
• below

Examples of underneath in a Sentence

Preposition

He hid the envelope underneath his coat.

She slipped a note underneath the door.

The ball rolled underneath the car.

He lives in the apartment underneath mine.

There was gum stuck underneath the table.

Underneath her calm exterior was a nervous woman with a hot temper.

They actually had a lot in common underneath their obvious differences.

Adverb

He wore a white sweater with a red shirt underneath.

She lifted up the rock and found ants crawling underneath.

The car had rust underneath.

Recent Examples on the Web

Preposition

Compare the look of the Notification Center in iOS 26 and macOS 26—the iOS 26 bubbles really do have the appearance of thin sheets of lightly frosted glass, where the macOS bubbles just give you the vaguest impression of what's lying underneath them. —ArsTechnica, 15 Sep. 2025

The severe force of the impact caused Stone to be ejected from and subsequently pinned underneath the van, ultimately dying from her injuries. —John Perlstein, Forbes.com, 15 Sep. 2025

Adverb

Getty Images Taking away this coating by polishing the statue would mean that the metal underneath would be thinner and weaker. —Theo Burman, MSNBC Newsweek, 12 Sep. 2025

Spanx Cut Prices on Shapewear and Intimates Stocking up on fall clothes has likely been top of mind, but what about what’s underneath? —Nicol Natale, PEOPLE, 12 Sep. 2025

Word History

Etymology

Preposition

Middle English undernethe, preposition & adverb, from Old English underneothan, from under + neothan below — more at beneath

First Known Use

Preposition

before the 12th century, in the meaning defined at sense 1a

Adverb

before the 12th century, in the meaning defined at sense 1

Phrases Containing underneath

• the underneath
• underneath it all

Rhymes for underneath

• beneath
• bequeath
• neath
• sheath
• teeth
• wreath

Kids Definition

underneath

1 of 2 preposition

un·​der·​neath ˌən-dər-ˈnēth 

1

: right under

wore their bathing suits underneath their clothes

2

: under the control of

underneath

2 of 2 adverb

1

: under or below an object or an outside part

soaked through the jacket to the shirt underneath

2

: on the lower side

a pot blackened underneath