going on all the time

fixed

having a horizontal surface; equal in measurement, standard

smooth, balanced

limited; (of an opinion, a desire, feelings etc) in the middle within reasonable limits

calm, temperate

having, using, only one colour

fixed

preferring or enjoying, peace; calm; quiet

friendly, serene

calm; not easily annoyed

calm, mild

(of surface) level or polished, like glass; calm and free from uncomfortable movement; (of a liquid mixture) free from lumps

level, unwrinkled; flowing

firm; not likely to move or change; a building in which horses are kept and fed; a number of horses (especially racehorses) belonging to one particular owner

constant, fixed; resistant

firmly fixed or supported; not likely to fall over; not changing in amount, speed etc; (of a person behaviour) having, keeping to, a regular (good) pattern

stable, fixed

showing, behaving with, self-control; (of parts of the world) free from extremes of heat and cold

calm, moderate

not varying in form, quality etc

consistent