tougher

adjective
  1. 1

    Strong and resilient; sturdy.

    โ€œThe tent, made of tough canvas, held up to many abuses.โ€

  2. 2

    (of food) Difficult to cut or chew.

    โ€œTo soften a tough cut of meat, the recipe suggested simmering it for hours.โ€

  3. 3

    Rugged or physically hardy.

    โ€œOnly a tough species will survive in the desert.โ€

  4. 4

    Stubborn.

    โ€œHe had a reputation as a tough negotiator.โ€

  5. 5

    (of weather etc) Harsh or severe.

  6. 6

    Rowdy or rough.

    โ€œA bunch of the tough boys from the wrong side of the tracks threatened him.โ€

  7. 7

    (of questions, etc.) Difficult or demanding.

    โ€œThis is a tough crowd.โ€

  8. 8

    Undergoing plastic deformation before breaking.

Source: https://en.wiktionary.org/wiki/tough, https://en.wiktionary.org/wiki/tougher