Un*like" (?), a.
1.
Not like; dissimilar; diverse; having no resemblance; as, the cases are unlike.
2.
Not likely; improbable; unlikely.
[Obsoles.]
Unlike quantities Math., quantities expressed by letters which are different or of different powers, as a, b, c, a2, a3, xn, and the like. -- Unlike signs Math., the signs plus (+) and minus (-).
© Webster 1913.