whosever
🇬🇧/huːˈzevə(r)/ 🇺🇸/hʊˈzevər/of, belonging to, or relating to whomever.
adjective [原级] 无论是谁的
Whosever book is overdue will be fined. 不管谁的书过期未还都要被罚款。
pronoun [指示代词] 无论是谁的
This car is comfortable to ride whosever it is. 不管这部车子是谁的,坐起来很舒服。