unequivocal
adjective(un-e-quiv-o-cal)
admitting of no doubt or misunderstanding; having only one meaning or interpretation and leading to only one conclusion
Examples:
Unequivocal evidence.
Took an unequivocal position.
An unequivocal success.
An unequivocal promise.
An unequivocal (or univocal) statement.