reversible

/R IH0 V ER1 S AH0 B AH0 L/
adjective
  1. 1

    Able to be reversed.

  2. 2

    (of clothing) Able to be worn inside out.

  3. 3

    (of a chemical reaction) Capable of proceeding in either direction.

  4. 4

    (of a phase change) Capable of returning to the original state.

  5. 5

    Capable of returning to the original state without consumption of free energy and increase of entropy.

Antonyms

Source: https://en.wiktionary.org/wiki/reversible