Definition of "one-sided" in English

adjective

1. Partial or biased in favour of one faction or demographic group.

   • We were robbed! That referee was definitely one-sided.

2. With one competitor dominant over the other.

   • It was a swift, one-sided fight, all over in the second round.

3. Out of proportion or lopsided.

4. Having only one side, like a Möbius strip.

5. (botany) Turned to one side.

6. (logic, of a modality) That is necessarily or absolutely different than the respective coordinate alethic or temporal modality, but not its opposite.