a small, brown jumping insect which makes a shrill noise by rubbing its front wings together

impartial

not influenced by personal feelings or interests

detached, uninvolved

(a person) supporting equal rights, benefits and opportunities for all people

equal

fair; just

impartial

acting in a just and honest way; in accordance with justice or the rules (of a game etc)

impartial, unprejudiced

(US = unbiased) not biassed

not prejudiced

free from prejudice

fair