Unequal a. : 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.

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

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

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

Unequal a. : Not having the two sides or the parts symmetrical.

Example:
What is the minimum number of Unequal forces whose vector sum can equal zero?

Taxonomy
Merriam-Webster Online Dictionary, Dictionary, webster, kw, Word Games, Webster Online Dictionary with audio pronunciations, adjective, adverb, Google Search, Custom Search, glossary, english, language, ESL, Search, measurement, quantity, uniform.

Defination from the web:
unequal from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... 3 a : badly balanced or matched <an unequal contest> b : contracted between unequals <unequal marriages> c archaic : not equable. 4 archaic : ...