equilibrium

1 a condition in which opposing forces are equal to one another we must find an equilibrium between commercial development and conservation of our natural treasures Synonyms counterpoise, equilibration, balance, equipoise, poise, stasisRelated Words counterbalance, offset; firmness, fixedness, security, stability, steadinessNear Antonyms changeability, fluctuation, inconstancy, insecurity, instability, mutability, precariousness, shakiness, unsteadiness, volatilityAntonyms disequilibration, disequilibrium, imbalance, nonequilibrium, unbalance

2 evenness of emotions or temper that stunning insult left me speechless, and several minutes passed before I recovered my equilibrium Synonyms aplomb, calmness, collectedness, composedness, composure, cool, coolness, countenance, equanimity, imperturbability, placidity, repose, sangfroid, self-composedness, self-possession, serenity, tranquillity (or tranquility), tranquilnessRelated Words assurance, confidence, poise, self-assurance, self-assuredness, self-confidence, self-trust; easygoingness, laid-backness; apathy, detachment, impassivity, indifference, insensibility, numbness, phlegm, unconcernNear Antonyms alarm (also alarum), anxiety, anxiousness, apprehension, apprehensiveness, care, concern, disquiet, solicitude, uneasiness, worry; excitability, excitableness, nervousness; disturbanceAntonyms agitation, discomposure, perturbation