(American spelling) Unmatched, superlative, the best ever done, record setting.

Not the same. / Out of balance. / (comparable) Inadequate; insufficiently capable or qualified. / Erratic, inconsistent.

One who is not an equal.

Not equally, unevenly, sometimes unfairly.

The state or condition of being unequal; inequality.

plural of unequity

(obsolete) Want of equity or uprightness; injustice; wickedness; iniquity.

(rare) inequality

Not equable.

plural of unequal