- to make different in some particular, as size, style, course, or the like; modify: to alter a coat; to alter a will; to alter course.
- to castrate or spay.
- to change; become different or modified.
Origin of alter
Examples from the Web for altered
Another time he altered the program so that the high score table would refuse to display the initials of one of his colleagues.‘Asteroids’ & The Dawn of the Gamer Age
November 29, 2014
The loss of authenticity is equal to loss of the whole site as a cultural resource—its entire DNA is altered.For Rent: Priceless Historic Sites
November 16, 2014
Both verify that the ad ran on Grindr and has not been edited or altered in any way.A Tom Cotton Ad on Grindr?
October 29, 2014
The Oscar winning actress has been torn to shreds by the media and public for her altered face.Renee Zellweger’s Fine, But We Need Some Work: The Toxic Pursuit of ‘Effortless’ Beauty
October 22, 2014
It changed him significantly, altered his ideas, and I believe had a profound effect on his best friend Martin.How Hitch & Amis Discovered Evil In My House
September 28, 2014
They are too deeply rooted in the principles of our national life to be altered.
"My letter to you was not signed, I believe," said Vivian, in an altered voice.Tales And Novels, Volume 5 (of 10)
How altered and defaced by the putrifying touch of mortality!Female Scripture Biographies, Vol. I
Francis Augustus Cox
Finally, the quantity of some words has been altered to the values currently accepted as correct.Beowulf
"And I that I were poor," said Evelyn, with an altered tone and expression of countenance.Alice, or The Mysteries, Complete
Word Origin and History for altered
late 14c., "to change (something)," from Old French alterer "change, alter," from Medieval Latin alterare "to change," from Latin alter "the other (of the two)," from PIE *al- "beyond" (see alias (adv.)) + comparative suffix -ter (cf. other). Intransitive sense "to become otherwise" first recorded 1580s. Related: Altered; altering.