in tractable (adjective) intractable: difficult
Detalii: intractable means stubborn or obstinate; intransigent is this, but implies being more intense and refusing to compromise or change
Sinonime: aseptic, disinfected, germ-free,
good, healthful,
healthy, pure,
salubrious,
salutary, salutiferous, sanitary, sterile, uncontaminated, uninfected,
wholesomeAntonime: contaminated,
dirty, diseased,
filthy,
foul, infected, unclean, unpure, unsanitary, unsterile