PERTURBATION Antonyms

• (of weather) free from storm or wind

• steadiness of mind under stress

• wind moving at less than 1 knot; 0 on the Beaufort scale

• not agitated; without losing self-possession

• make calm or still

• make steady

• become quiet or calm, especially after a state of agitation

• cause to be calm or quiet as by administering a sedative to

• steadiness of mind under stress

• happiness with one's situation in life

• freedom from difficulty or hardship or effort

• a freedom from financial difficulty that promotes a comfortable state

• the condition of being comfortable or relieved (especially after being relieved of distress)

• freedom from constraint or embarrassment

• freedom from activity (work or strain or responsibility)

• move gently or carefully

• lessen pain or discomfort; alleviate

• make easier

• lessen the intensity of or calm

• a stable situation in which forces cancel one another

• a chemical reaction and its reverse proceed at equal rates

• equality of distribution

• a sensory system located in structures of the inner ear that registers the orientation of the head

• the state prevailing during the absence of war

• harmonious relations; freedom from disputes

• the absence of mental stress or anxiety

• the general security of public places

• a treaty to cease hostilities

• (physiology) the gradual lengthening of inactive muscle or muscle fibers

• (physics) the exponential return of a system to equilibrium after a disturbance

• a feeling of refreshing tranquility and an absence of tension or worry

• an occurrence of control or strength weakening

• freedom from activity (work or strain or responsibility)

• a method of solving simultaneous equations by guessing a solution and then reducing the errors that result by successive approximations until all the errors are less than some specified amount

• the act of making less strict

• a disposition free from stress or emotion

• the absence of mental stress or anxiety

• a disposition free from stress or emotion

• an untroubled state; free from disturbances

• a state of peace and quiet