Try Our Apps


Word of the Day
Wednesday, October 05, 2016

Definitions for deleterious

  1. harmful; injurious: deleterious influences.
  2. injurious to health: deleterious gases.

Learn something
new every day


Thank youfor signing up
Get the Word of the Day Email
Citations for deleterious
I do not mean to exaggerate the beneficial effects of my friendship or, for that matter, the deleterious influence of Sue. Zoë Heller, What Was She Thinking? Notes on a Scandal, 2003
Mr. Rampole knew her name as one of the authors who were not positively deleterious to his pocket, and consequently when his new manner of life, and the speculative tendencies which it fostered, caused him to take up novel reading, he began on her. Evelyn Waugh, Put Out More Flags, 1942
Origin of deleterious
Deleterious came to English via Latin deleterius from the Greek adjective dēlētḗrios meaning "hurtful, destructive." It entered English in the mid-1600s.