presumptive

/prɪˈzʌmptɪv/
adjective
  1. Based on what is likely to be true or accepted as true until proven otherwise.
    • The presumptive diagnosis was the flu, but further tests showed it was a bacterial infection.
    • In many states, a child born during a marriage is the presumptive child of the husband.
    • The presumptive winner of the election gave a victory speech before all votes were counted.
  2. Likely to become something or to be something in the future.
    • She is the presumptive leader of the research team once the current director retires.
    • As the oldest son, he was the presumptive heir to the family estate.
    • The vice president is often seen as the presumptive candidate for the next election.
Antonyms
What does "presumptive" mean? | whatsthatwordmean | whatsthatwordmean