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deter

[dih-tur] /dɪˈtɜr/
verb (used with object), deterred, deterring.
1.
to discourage or restrain from acting or proceeding:
The large dog deterred trespassers.
2.
to prevent; check; arrest:
timber treated with creosote to deter rot.
Origin
1570-1580
1570-80; < Latin dēterrēre to prevent, hinder, equivalent to dē- de- + terrēre to frighten
Related forms
determent, noun
deterrable, adjective
deterrability, noun
deterrer, noun
undeterrability, noun
undeterrable, adjective
undeterrably, adverb
undeterred, adjective
undeterring, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for undeterred
  • Neutrinos, which speed through material seemingly undeterred, aren't affected.
  • Still, research libraries with a stake in that work said they were undeterred.
  • Someone intervened and got them to stop, but my mom was undeterred.
  • Yet a small but vociferous number of scientists remain undeterred.
  • As it turned out, customers appeared undeterred by the controversy.
  • Happily, though, my ego has the ability to charge on undeterred.
  • Caffeine-starved but undeterred, the remote club members built the world's first networked camera.
  • And they know that traumatized survivors and undeterred rapists may, on release, be more prone to recidivism themselves.
  • But being undeterred is not defeated, not undefeated.
  • Levin and hundreds of other guests seemed undeterred by the change in venue.
British Dictionary definitions for undeterred

undeterred

/ˌʌndɪˈtɜːd/
adjective
1.
not discouraged or dissuaded

deter

/dɪˈtɜː/
verb -ters, -terring, -terred
1.
(transitive) to discourage (from acting) or prevent (from occurring), usually by instilling fear, doubt, or anxiety
Derived Forms
determent, noun
Word Origin
C16: from Latin dēterrēre, from de- + terrēre to frighten
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
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Word Origin and History for undeterred
adj.

c.1600, from un- (1) "not" + past participle of deter.

deter

v.

1570s, from Latin deterrere "to frighten from, discourage from," from de- "away" (see de-) + terrere "frighten" (see terrible). Deterrent is from 1829.

Online Etymology Dictionary, © 2010 Douglas Harper
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