Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class V. Words Releasing to the Voluntary Powers
Division (I) Individual Volition
Section III. Voluntary Action
1. Simple Voluntary Action

681. Inaction.

   NOUN:INACTION, passiveness, abstinence from action; watchful waiting; noninterference; Fabian -, laisser-aller [F.] -, laisser-faire [F.] -, conservative- policy; neglect [See Neglect].
  INACTIVITY [See Inactivity]; stagnation, vegetation, loafing, loaf; rest (repose) [See Repose]; quiescence [See Quiescence]; want of occupation, unemployment, inoccupation; idle hours, idle hands, time hanging on one’s hands, dolce far niente [It.]; shore duty; interregnum; sinecure; soft snap, soft thing, cinch [all three slang].
   VERB:NOT DO, not act, not attempt; be inactive [See Inactivity]; abstain from doing, do nothing, hold, spare; not stir -, not move -, not lift- a -finger, – hand, – foot, – peg; fold one’s -arms, – hands; leave -, let- alone; let be, let pass, let things take their course, let it have its way, let well alone, let well enough alone; quieta non movere [L.]; stare super antiquas vias [L.]; rest and be thankful, live and let live; lie -, rest- upon one’s oars; laisser aller [F.], laisser faire [F.]; stand aloof; refrain (avoid) [See Avoidance]; keep oneself from doing; remit -, relax- one’s efforts; desist (relinquish) [See Relinquishment]; stop (cease) [See Cessation]; pause (be quiet) [See Quiescence].
  WAIT, lie in wait, bide one’s time, take time, tide it over.
  cool -, kick- one’s heels; while away the -time, – tedious hours; pass -, fill up -, beguile- the time; talk against time; waste time (inactive) [See Inactivity].
  lie by, lie on the shelf, lie idle, lie to, lie fallow; keep quiet, slug [obs.]; have nothing to do, whistle for want of thought; twiddle one’s thumbs.
  UNDO, do away with; take down, take to pieces; destroy [See Destruction].
   ADJECTIVE:NOT DOING &c. v.; not done &c. v.; undone; passive; unoccupied, unemployed; out of -employ, – work, – a job; uncultivated, fallow; désœuvré [F.].
   ADVERB:AT A STAND, re infectâ [L.], les bras croisés [F.], with folded arms; with the hands -in the pockets, – behind one’s back; pour passer le temps [F.].
   INTERJECTION:STOP! [See Cessation]; hands off! so let it be! enough! no more! bas! [Hind.].    QUOTATIONS:
  1. Cunctando restituit rem.
  2. Inaction is cowardice.—Emerson