roundest

/R AW1 N D AH0 S T/
adjective
  1. 1

    (physical) Shape.

  2. 2

    Complete, whole, not lacking.

    โ€œThe baker sold us a round dozen.โ€

  3. 3

    (of a number) Convenient for rounding other numbers to; for example, ending in a zero.

    โ€œOne hundred is a nice round number.โ€

  4. 4

    Pronounced with the lips drawn together; rounded.

  5. 5

    Outspoken; plain and direct; unreserved; not mincing.

    โ€œa round answer; a round oathโ€

  6. 6

    Finished; polished; not defective or abrupt; said of authors or their writing style.

  7. 7

    Consistent; fair; just; applied to conduct.

  8. 8

    Large in magnitude.

    โ€œa round sumโ€

  9. 9

    (authorship, of a fictional character) Well-written and well-characterized; complex and reminiscent of a real person.

    ant:flat
  10. 10

    Vaulted.

Source: https://en.wiktionary.org/wiki/round, https://en.wiktionary.org/wiki/roundest