[ kon-truh-dik-tuh-ree ]
/ ˌkɒn trəˈdɪk tə ri /


asserting the contrary or opposite; contradicting; inconsistent; logically opposite: contradictory statements.
tending or inclined to contradict.

noun, plural con·tra·dic·to·ries.

Logic. a proposition so related to a second that it is impossible for both to be true or both to be false.

Nearby words

  1. contradict,
  2. contradiction,
  3. contradiction in terms,
  4. contradictious,
  5. contradictive,
  6. contradistinction,
  7. contradistinguish,
  8. contrafactual,
  9. contrafissura,
  10. contraflow

Origin of contradictory

1350–1400; Middle English < Late Latin contrādictōrius, equivalent to contrādic(ere) (see contradict) + -tōrius -tory1

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

Examples from the Web for contradictorily

British Dictionary definitions for contradictorily


/ (ˌkɒntrəˈdɪktərɪ) /


inconsistent; incompatible
given to argument and contentiona contradictory person
logic (of a pair of statements) unable both to be true or both to be false under the same circumstancesCompare contrary (def. 5), subcontrary (def. 1)

noun plural -ries

logic a statement that cannot be true when a given statement is true or false when it is false
Derived Formscontradictorily, adverbcontradictoriness, noun

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

Word Origin and History for contradictorily



1530s, "mutually opposed, at variance," from Late Latin contradictorius "containing a contradiction or objection," from contradictus, past participle of contradicere (see contradiction). Meaning "fond of contradicting" is from 1891. Used earlier as a noun (late 14c.).

Online Etymology Dictionary, © 2010 Douglas Harper