Augean stables - (Greek mythology) the extremely dirty stables that were finally cleaned by Hercules who diverted two rivers through them

farm building - a building on a farm

livery stable - stable where horses and vehicles are kept for hire

stall - a compartment in a stable where a single animal is confined and fed

animal husbandry - breeding and caring for farm animals

shelter - provide shelter for; "After the earthquake, the government could not provide shelter for the thousands of homeless people"

constant - steadfast in purpose or devotion or affection; "a man constant in adherence to his ideals"; "a constant lover"; "constant as the northern star"

lasting, permanent - continuing or enduring without marked change in status or condition or place; "permanent secretary to the president"; "permanent address"; "literature of permanent value"

steady - not subject to change or variation especially in behavior; "a steady beat"; "a steady job"; "a steady breeze"; "a steady increase"; "a good steady ballplayer"

sound - financially secure and safe; "sound investments"; "a sound economy"

unreactive - not reacting chemically

balanced - being in a state of proper balance or equilibrium; "the carefully balanced seesaw"; "a properly balanced symphony orchestra"; "a balanced assessment of intellectual and cultural history"; "a balanced blend of whiskeys"; "the educated man shows a balanced development of all his powers"

unchangeable - not changeable or subject to change; "a fixed and unchangeable part of the germ plasm"-Ashley Montagu; "the unchangeable seasons"; "one of the unchangeable facts of life"