Definition of "equable"

equable

/ˈɛk.wə.bəl/

adjective
comparative more equable, superlative most equable
1. Unvarying, calm and steady; constant and uniform.
  Quotations
  The cheerful influence of the morning seemed to have some effect, even upon his equable temper.
  1841, Charles Dickens, chapter LXXXV, in Barnaby Rudge
  Turning to the prisoner, "Budd," he said, and scarce in equable tones, "Budd, if you have aught further to say for yourself, say it now."
  1924, Herman Melville, chapter 18, in Billy Budd‎, London: Constable & Co.
2. (of temperature) Free from extremes of heat or cold.
  Quotations
  The indulgences of habit she would not resign, therefore held by the pleasures of the table; but the comforts of equable heat, which was particularly necessary, she denied herself much too long, and resisted warm clothing most determinately;...
  1842, [anonymous collaborator of Letitia Elizabeth Landon], chapter LVII, in Lady Anne Granard; or, Keeping up Appearances. […], volume III, London: Henry Colburn, […], page 107
3. (of emotions etc) Not easily disturbed; tranquil.