most deleterious
ɪˈtɪər adjective
1.
injurious to health: deleterious gases.
2.
harmful; injurious: deleterious influences.
Origin:
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
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
Related forms
del·e·te·ri·ous·ly, adverb
del·e·te·ri·ous·ness, noun
non·del·e·te·ri·ous, adjective
non·del·e·te·ri·ous·ly, adverb
non·del·e·te·ri·ous·ness, noun
Synonyms
2. pernicious, hurtful, destructive; noxious.
2. pernicious, hurtful, destructive; noxious.
Antonyms
2. beneficial.
2. beneficial.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To most deleterious
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Most deleterious
is always a great word to know.
So is ninnyhammer. Does it mean:
| a fool or simpleton; ninny. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
Collins
World English Dictionary
deleterious (ˌdɛlɪˈtɪərɪəs) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —adj | |
| harmful; injurious; hurtful | |
| [C17: from New Latin dēlētērius, from Greek dēlētērios injurious, destructive, from dēleisthai to hurt] | |
| dele'teriously | |
| —adv | |
| dele'teriousness | |
| —n | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History
deleterious
1640s, from Gk. deleterios, from deleter "destroyer," from deleisthai "to hurt, injure."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary
deleterious del·e·te·ri·ous (děl'ĭ-tēr'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.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Nearby Words
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