unconformity Meaning, Definition & Usage

Un`con*form"i*ty noun
Definitions
  1. Want of conformity; incongruity; inconsistency. South.
  2. (Geol.) Want of parallelism between strata in contact. ✍ With some authors unconformity is equivalent to unconformability; but it is often used more broadly, for example, to include the case when the parallelism of strata once conformable has been disturbed by faulting and the like.

Webster 1913