sustaining
sus-tain-ing
verb
The act of keeping something in existence or providing support for it.
"The pillars are sustaining the roof."
adjective
Providing nourishment, strength, or support for a long duration.
"Porridge is a very sustaining breakfast."
Thesaurus
Synonyms: corroborate, affirm, confirm, substantiate, support, sustain, nourish, nurture, hold up, hold, get, suffer
Antonyms: contradict, negate