equable

 
Pronunciation: /ˈɛkwəb(ə)l/

adjective

  • 1not easily disturbed or angered; calm and even-tempered: he could look sterner than his equable temperament would suggest
  • 2not varying or fluctuating greatly: an equable climate

Derivatives

equability

Pronunciation: /-ˈbɪlɪti/
noun

equably

adverb

Origin:

mid 17th century (in the sense 'fair, equitable'): from Latin aequabilis, from aequare 'make equal' (see equate)