›a condition that helps you or gives you a greater chance of success: [C]His long arms give him a big advantage over other boxers.[U]Test scores show no advantage for students in the new schools.[U]Her teacher likes her very much, which works to her advantage (= helps her) if she has trouble in class.advantageous
/ˌædˌvænˈteɪ·dʒəs/, /-vən-/adj›The agreement is advantageous to both sides.