Dictionary.com
Thesaurus.com
Synonyms

upright

American  
[uhp-rahyt, uhp-rahyt] / ˈʌpˌraɪt, ʌpˈraɪt /

adjective

  1. erect or vertical, as in position or posture.

    Synonyms:
    vertical, perpendicular, plumb
    Antonyms:
    horizontal, recumbent
  2. raised or directed vertically or upward.

  3. adhering to rectitude; righteous, honest, or just.

    an upright person.

    Synonyms:
    honorable
  4. being in accord with what is right.

    upright dealings.


noun

  1. the state of being upright or vertical.

  2. something standing erect or vertical, as a piece of timber.

    Synonyms:
    column, pile, pillar, prop, pole
  3. an upright piano.

  4. Chiefly Football. Usually uprights. the goalposts.

adverb

  1. in an upright position or direction; vertically.

verb (used with object)

  1. to make upright.

upright British  
/ ˈʌpˌraɪt /

adjective

  1. vertical or erect

  2. honest, honourable, or just

"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

adverb

  1. vertically

"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

noun

  1. a vertical support, such as a stake or post

  2. short for upright piano

  3. the state of being vertical

"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

verb

  1. (tr) to make upright

"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
upright Idioms  

Related Words

Upright, erect, vertical, perpendicular imply that something is in the posture of being straight upward, not leaning. That which is upright is in a position corresponding to that of a person standing up: a decaying tree no longer standing upright; an upright piano. Erect emphasizes the straightness of position or posture: proud and erect; A flagpole stands erect. Vertical suggests upward direction, especially along the shortest line from the earth to a level above it: the vertical edge of a door; ornamented by vertical lines. Perpendicular, a term frequently interchangeable with vertical, is used especially in mathematics: the perpendicular side of a right triangle; to erect a perpendicular line from the base of a figure.

Other Word Forms

  • nonupright adjective
  • nonuprightly adverb
  • nonuprightness noun
  • uprightly adverb
  • uprightness noun

Etymology

Origin of upright

First recorded before 900; Middle English, Old English upriht (cognate with German aufrecht ); see up, right

Explanation

Something that's upright stands straight up. When you sit upright, your back is straight and vertical. Even your grandmother would approve of your posture. Most cars have seats that can fold forward or lean back, and then snap upright, back into a normal sitting position; and when you're in class, you're usually expected to sit upright, facing your teacher at the front of the room. Another way to use upright is to mean "upstanding" or "trustworthy," so if your friend finds a wallet full of money and returns it to its owner, you can call her an upright citizen.

Keep Reading on Vocabulary.com

Vocabulary lists containing upright

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.

They showed the utility poles in the background were all standing upright, lines still strung between them.

From The Wall Street Journal • Apr. 10, 2026

It opens with rumbling drums, a wandering upright bass, and an atmospheric synthesizer.

From Los Angeles Times • Mar. 31, 2026

According to historical records, the shield was found buried upright in peat alongside six others – though the whereabouts of those remains unclear.

From BBC • Mar. 30, 2026

He notes that adult Uberabatitan individuals, unlike the younger specimen analyzed, likely faced the same challenges as other large sauropods when trying to stand upright.

From Science Daily • Mar. 30, 2026

It took Danny several moments to recover from the shock of seeing the guinea pig walk upright and scowl in his general direction.

From "The Way to Rio Luna" by Zoraida Cordova