[ uhn-kuh n-fawr-muh-buh l ]
/ ˌʌn kənˈfɔr mə bəl /


not conformable; not conforming.
Geology. indicating discontinuity of any type in a stratigraphic sequence.

Nearby words

  1. unconditioned reflex,
  2. unconditioned response,
  3. unconditioned stimulus,
  4. unconfined,
  5. unconfirmed,
  6. unconformity,
  7. uncongenial,
  8. unconnected,
  9. unconquerable,
  10. unconscionable

Origin of unconformable

First recorded in 1585–95; un-1 + conformable

Related formsun·con·form·a·bil·i·ty, nounun·con·form·a·bly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unconformably

  • A greatly deformed and metamorphosed older series is unconformably overlaid by a great thickness of younger strata.

British Dictionary definitions for unconformably


/ (ˌʌnkənˈfɔːməbəl) /


not conformable or conforming
(of rock strata) consisting of a series of younger strata that do not succeed the underlying older rocks in age or in parallel position, as a result of a long period of erosion or nondeposition
Derived Formsunconformability or unconformableness, noununconformably, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012