Antonyms of verb obviate

1 of 2 senses of obviate

Sense 1
obviate, rid of, eliminate -- (do away with)
       Antonym of necessitate (Sense 1)
      => necessitate, ask, postulate, need, require, take, involve, call for, demand -- (require as useful, just, or proper; "It takes nerve to do what she did"; "success usually requires hard work"; "This job asks a lot of patience and skill"; "This position demands a lot of personal sacrifice"; "This dinner calls for a spectacular dessert"; "This intervention does not postulate a patient's consent")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb obviate

2 senses of obviate

Sense 1
obviate, rid of, eliminate -- (do away with)

Sense 2
debar, forefend, forfend, obviate, deflect, avert, head off, stave off, fend off, avoid, ward off -- (prevent the occurrence of; prevent from happening; "Let's avoid a confrontation"; "head off a confrontation"; "avert a strike")
       => prevent, forestall, foreclose, preclude, forbid -- (keep from happening or arising; make impossible; "My sense of tact forbids an honest answer"; "Your role in the projects precludes your involvement in the competitive project")