underside

noun
un·​der·​side | \ ˈən-dər-ˌsīd How to pronounce underside (audio) , ˌən-dər-ˈsīd \

Definition of underside

1 : the side or surface lying underneath
2 : a side usually hidden from sight specifically : the more unpleasant or reprehensible side the underside of politics

Keep scrolling for more

Synonyms & Antonyms for underside

Synonyms

Antonyms

Visit the Thesaurus for More 

Examples of underside in a Sentence

the underside of the table The book explores the underside of human nature.
Recent Examples on the Web Ingenuity arrived on the red planet Feb. 18 attached to the underside of the Martian rover Perseverance. Rachael Joy, USA TODAY, "NASA releases 'hi-res' video of Ingenuity helicopter making historic flight on Mars," 19 Apr. 2021 Unlike classic faux lashes, which are glued along the top of the lash line, Lashify's signature individual Gossamer lashes are imperceptibly attached to the underside of natural lashes for real-looking length. Tatjana Freund, Marie Claire, "Why The Lashify Control Kit Is Worth It," 14 Apr. 2021 Wads and wads of gum, long ago petrified, are glued to the underside of the now-padded bleachers in the fieldhouse’s upper reaches. Billy Witz, New York Times, "Hinkle Fieldhouse Is Still Ready for Its Close-Up," 26 Mar. 2021 Try attaching it to the underside of an RC car for some seriously rad Fast and Furious effects. Jennifer Leman, Popular Mechanics, "How to Make Homemade Dry Ice," 10 Feb. 2021 Aniko mounted a towel bar to the underside of the island countertop to make that side work harder. Becky Mollenkamp, Better Homes & Gardens, "This Twice-Remodeled Kitchen Showcases an Evolution in Modern Style," 24 Nov. 2020 Skate plates, the underside of a roller skate, are treasured like the chrome engineering under the hood of a custom car. Michelle Ailport, The Arizona Republic, "Valley roller skaters adapt during pandemic, embrace community to overcome adversity," 21 Apr. 2021 To survive its long journey from Earth to Mars, Ingenuity traveled aboard Perseverance folded up like an ironing board in a compartment on the rover’s underside. Robert Lee Hotz, WSJ, "NASA’s Mars Helicopter Ingenuity Successfully Makes Historic First Flight," 19 Apr. 2021 With the opposite end of the glue—which looks like classic lash glue—paint a line across the underside of your lashes, from the inner to outer corner. Tatjana Freund, Marie Claire, "Why The Lashify Control Kit Is Worth It," 14 Apr. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'underside.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of underside

1660, in the meaning defined at sense 1

Keep scrolling for more

Learn More about underside

Time Traveler for underside

Time Traveler

The first known use of underside was in 1660

See more words from the same year

Statistics for underside

Last Updated

7 May 2021

Cite this Entry

“Underside.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underside. Accessed 8 May. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for underside

underside

noun

English Language Learners Definition of underside

: the bottom side or part of something
: a part of life, a city, etc., that is hidden and usually unpleasant

underside

noun
un·​der·​side | \ ˈən-dər-ˌsīd How to pronounce underside (audio) \

Kids Definition of underside

: the side or surface lying underneath the underside of a leaf

More from Merriam-Webster on underside

Thesaurus: All synonyms and antonyms for underside

Nglish: Translation of underside for Spanish Speakers

Comments on underside

What made you want to look up underside? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Star Wars Words Quiz

  • cu jedi training
  • The bounty portion of bounty hunters (such as Boba Fett) comes from a Latin word meaning
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
 AlphaBear 2

Spell words. Make bears.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!