Unequal vs. Uneven — What's the Difference?

Not the same in any measurable aspect, such as extent or quantity.

Not equal, as in size, length, or quality.

Not the same as another in rank or social position.

Having ill-matched opponents

Consisting of ill-matched opponents

Not consistent or uniform

Having unbalanced sides or parts; asymmetric.

Not smooth or level

Not even or consistent; variable.

Not straight or parallel

Not having the required abilities; inadequate

Of, relating to, or being an odd number.

Not fair. See Usage Note at equal.

(Obsolete) Not fair or equitable.

One that is not the equal of another.

Not even

Not the same.

Not level or smooth

Out of balance.

Not uniform

(comparable) Inadequate; insufficiently capable or qualified.

Varying in quality

Erratic, inconsistent.

Odd

One who is not an equal.

(transitive) To make uneven.

Not equal; not matched; not of the same size, length, breadth, quantity, strength, talents, acquirements, age, station, or the like; as, the fingers are of unequal length; peers and commoners are unequal in rank.

Not even; not level; not uniform; rough; as, an uneven road or way; uneven ground.

Ill balanced or matched; disproportioned; hence, not equitable; partial; unjust; unfair.

Not equal; not of equal length.

Not uniform; not equable; irregular; uneven; as, unequal pulsations; an unequal poem.

Not divisible by two without a remainder; odd; - said of numbers; as, 3, 7, and 11 are uneven numbers.

Not adequate or sufficient; inferior; as, the man was unequal to the emergency; the timber was unequal to the sudden strain.

Not even or uniform as e.g. in shape or texture;

Not having the two sides or the parts symmetrical.

(of a contest or contestants) not fairly matched as opponents;

Not equal in amount;

Inconsistent in quality

Poorly balanced or matched in quantity or value or measure