Dictionary.com

inactive

[ in-ak-tiv ]
/ ɪnˈæk tɪv /
Save This Word!
See synonyms for: inactive / inactively / inactivity on Thesaurus.com

adjective
not active: an inactive volcano.
sedentary or passive: an inactive life.
sluggish; indolent.
Military. not on active duty.
Chemistry.
  1. inert; unreactive.
  2. noting a compound that has no effect on polarized light.
QUIZ
SPRINT TO THE FINISH WITH THIS OLYMPICS QUIZ!
Compete in our Olympics quiz to see if you can take home the gold medal in Olympics knowledge.
Question 1 of 10
Where was the Olympics first held?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of inactive

First recorded in 1715–25; in-3 + active

synonym study for inactive

1, 2. Inactive, dormant, inert, sluggish, torpid suggest lack of activity. Inactive indicates absence of action, indisposition to activity, or cessation of activity: an inactive compound, life, file of papers. Dormant suggests the quiescence or inactivity of that which sleeps but may be roused to action: a dormant volcano. Inert suggests the condition of dead matter, with no inherent power of motion or action; it may also mean unable to move, or heavy and hard to move: an inert mass; inert from hunger. Sluggish expresses slowness of natural activity or of that which does not move readily or vigorously: a sluggish stream, brain. Torpid suggests a state of suspended physical powers, a condition particularly of animals that hibernate: Snakes are torpid in cold weather.

OTHER WORDS FROM inactive

in·ac·tive·ly, adverbin·ac·tiv·i·ty, in·ac·tive·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use inactive in a sentence

British Dictionary definitions for inactive

inactive
/ (ɪnˈæktɪv) /

adjective
idle or inert; not active
sluggish, passive, or indolent
military of or relating to persons or equipment not in active service
chem (of a substance) having little or no reactivity
(of an element, isotope, etc) having little or no radioactivity

Derived forms of inactive

inactively, adverbinactivity or inactiveness, noun
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
FEEDBACK