deleterious
[ del-i-teer-ee-uhs ]
/ ˌdɛl ɪˈtɪər i əs /
adjective
injurious to health: deleterious gases.
harmful; injurious: deleterious influences.
SYNONYMS FOR deleterious
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Origin of deleterious
1635–45; <Greek dēlētḗrios destructive, adj. derivative of dēlētḗr destroyer, equivalent to dēlē- variant stem of dēleîsthai to hurt, injure + -tēr agent suffix + -ios adj. suffix; see -ious
OTHER WORDS FROM deleterious
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for deleterious
This close to an already volatile election, complicating factors are deleterious to investor confidence.
American stocks drop in wake of president’s COVID-19 diagnosis|Alex Wilhelm|October 2, 2020|TechCrunchIt turns out it has had a very deleterious effect on competition, and has increased the power of the parties.
There is little incentive to transmit deleterious informational algorithms either, since you want all of those other living experiments to continue to churn out their results.
It contained inhabitants of as undeleterious and self-satisfied a class of peasantry as ever clustered around a Maypole.
The Boy Scouts Book of Stories|Various
British Dictionary definitions for deleterious
deleterious
/ (ˌdɛlɪˈtɪərɪəs) /
adjective
harmful; injurious; hurtful
Derived forms of deleterious
deleteriously, adverbdeleteriousness, nounWord Origin for deleterious
C17: from New Latin dēlētērius, from Greek dēlētērios injurious, destructive, from dēleisthai to hurt
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 deleterious
deleterious
[ dĕl′ĭ-tîr′ē-əs ]
adj.
Having a harmful effect; injurious.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.