Definition of "whosever" in English

determiner

1. (possessive) Of whomever; belonging or related to whichever person or persons; whoever's.

   • Whosever sunglasses these are, they will have to pick them up tomorrow.

pronoun

1. (possessive) That of whomever; that which belongs or is related to whatever person or persons; whoever's.

   • Whosever it is, it will be seized.

contraction

1. (proscribed) whoever is.