A. inevident
B. inefficient
C. ineligible
D. uncertain
inevitable : certain to happen.
inevident : not clear or obvious.
inefficient : not achieving maximum productivity; wasting or failing to make the best use of time or resources.
ineligible : legally or officially unable to be considered for a position or benefit.
uncertain : not able to be relied on; not known or definite.
Antonym of inevitable is inevident
