obviates
ob-vi-ates
verb
To remove a difficulty or need, making something unnecessary or redundant.
"The new system obviates the need for manual checks."
Thesaurus
Synonyms: fend off, forfend, debar, head off, stave off, avoid, ward off, deflect, forefend, obviate, avert, rid of
Antonyms: ask, call for, demand, involve, necessitate, need, postulate, require, take