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adiaphorous

[ad-ee-af-er-uh s]
adjective
  1. doing neither good nor harm, as a medicine.

Origin of adiaphorous

1625–35, for earlier sense; < Greek adiáphoros, equivalent to a- a-6 + diáphoros different (dia- dia- + -phoros -phorous)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for adiaphorous

adiaphorous

adjective
  1. med having no effect for good or ill, as a drug or placebo

Word Origin for adiaphorous

C17: from Greek adiaphoros indifferent, from a- 1 + diaphoros different
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