actual vs. theoretical

actual

adjective

  1. existing in act or fact; real.

    an actual case of heroism; actual expenses.

    Synonyms: veritable, authentic, genuine
    Antonyms: fictional, unreal

  2. existing now; present; current.

    The ship's actual position is 22 miles due east of Miami.

  3. Obsolete.,  pertaining to or involving acts or action.

theoretical

adjective

  1. of, relating to, or consisting in theory; not practical (applied ).

  2. existing only in theory; hypothetical.

  3. given to, forming, or dealing with theories; speculative.