un·al·ter·a·ble 
(ŭn-ôltər-ə-bəl)
(ŭn-ôltər-ə-bəl)adj.
Impossible to alter: the unalterable season of bitter cold in Siberia.
un·al′ter·a·bili·ty, un·alter·a·ble·ness n.
un·alter·a·bly adv.
- hydrobiologist
- hydrobiology
- hydrobromic acid
- hydrobromide
- hydrocarbon
- hydrocarbonaceous
- hydrocarbonic
- hydrocarbonous
- hydrocast
- hydrocele
- hydrocephalic
- hydrocephaloid
- hydrocephalous
- hydrocephalus
- hydrocephaly
- hydrochloric acid
- hydrochloride
- hydrochlorofluorocarbon
- hydrochlorothiazide
- hydrochore
- hydrochory
- hydrocodone
- hydrocolloid
- hydrocolloidal
- hydrocortisone