1. Contrary action.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• counterdiction,
• counstraction,
• xounteraction,
• vounteraction,
• founteraction,
• dounteraction,
• ciunteraction,
• ckunteraction,
• clunteraction,
• countereaction,
• countraction,
• countreaction,
• counteracttion,
• counteractionn,
• countaraction,
• counterection,
• counter acton,
• countermaction,
• countoraction,
• couneteraction

• counterirritant,
• countertenor,
• countersign,
• contraception,
• countertop,
• counterpunch,
• contract out,
• contraption,
• counterplea,
• contracture,
• contracting,
• counterbalance,
• counterargument,
• countermine,
• countervailing,
• countervail,
• counterstain,
• contrastingly,
• counterblast,
• contractility,
• counterplay,
• contradiction,
• counterpoise,
• counterman,
• contracted,
• contradictory,
• counterpoised,
• contractile,
• contradict,
• countersuit,
• counteroffensive,
• contractual,
• countermove,
• countercurrent,
• contravention,
• counterattack,
• counterglow,
• counteractive,
• contrasting,
• countersignature,
• counterplot,
• contractor,
• counterpose,
• counterplan,
• contrastive,
• counterfire,
• countercoup,
• counterfactual,
• counterfeiter,
• counterblow,
• countersink,
• counterpoison,
• counterproposal,
• counterbalanced,
• counterbore,
• contradictorily,
• counteractively,
• counterchange,
• counterfoil,
• counterweight,
• counterpoint,
• counterperson,
• counterespionage,
• countermelody,
• contract offer,
• counterpane,
• counterpart,
• counterfeit,
• counter check,
• countershot,
• counterspy,
• counterwoman,
• contract in,
• counteract,
• counteroffer,
• countermand,
• contrarious,
• contraction,
• countersink bit.

The adjective form of the word "counteraction" is "counteractive".

The plural of the "counteraction" can be the "counteractions".

The singular of the "counteraction" can be the "counteraction".