Dictionary.com

hyper

1
[ hahy-per ]
/ ˈhaɪ pər /
Informal.
Save This Word!

adjective
overexcited; overstimulated; keyed up.
seriously or obsessively concerned; fanatical; rabid: She's hyper about noise pollution.
noun
a person who is hyper.
QUIZ
QUIZ YOURSELF ON "WAS" VS. "WERE"!
Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Origin of hyper

1
First recorded in 1970–75; probably independent use of hyper-

Other definitions for hyper (2 of 3)

hyper2
[ hahy-per ]
/ ˈhaɪ pər /

noun Informal.
a person who promotes or publicizes events, people, etc., especially one who uses flamboyant or questionable methods; promoter; publicist.

Origin of hyper

2
1910–15, Americanism, for an earlier sense; hype1 + -er1

Other definitions for hyper (3 of 3)

hyper-

a prefix appearing in loanwords from Greek, where it meant “over,” usually implying excess or exaggeration (hyperbole); on this model used, especially as opposed to hypo-, in the formation of compound words (hyperthyroid).
Compare super-.

Origin of hyper-

Greek, representing hypér over, above; cognate with Latin super (see super-); akin to over

WORDS THAT MAY BE CONFUSED WITH hyper-

hyper- , hypo-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use hyper in a sentence

British Dictionary definitions for hyper (1 of 2)

hyper
/ (ˈhaɪpə) /

adjective
informal overactive; overexcited

Word Origin for hyper

C20: probably independent use of hyper-

British Dictionary definitions for hyper (2 of 2)

hyper-

prefix
above, over, or in excesshypercritical
(in medicine) denoting an abnormal excesshyperacidity
indicating that a chemical compound contains a greater than usual amount of an elementhyperoxide

Word Origin for hyper-

from Greek huper over
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

Medical definitions for hyper

hyper-

pref.
Over; above; beyond:hyperflexion.
Excessive; excessively:hyperhydration.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for hyper

hyper-

A prefix that means “excessive” or “excessively,” especially in medical terms like hypertension and hyperthyroidism.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK