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Contradiction (Noun)

(logic) a statement that is necessarily false; "the statement `he is brave and he is not brave' is a contradiction".

Nouns denoting communicative processes and contents.

The phrase "this sentence is false" is a classic example of a logical contradiction.
The statement "I always lie" is a contradiction because if it is true, then the speaker must be telling the truth, but if they are telling the truth, then they are not always lying.
In logic, the statement "A and not A" is considered a fundamental contradiction that cannot be resolved.
The ancient Greek philosopher Aristotle argued that the concept of a square circle is a contradiction, as a shape cannot simultaneously have four sides and also be round.
The sentence "I am simultaneously alive and dead" is a contradiction in terms because a person cannot be both states at the same time.

The speech act of contradicting someone; "he spoke as if he thought his claims were immune to contradiction".

Nouns denoting communicative processes and contents.

The politician's inconsistent statements were ripe for contradiction by the opposing party.
Her opponent seized the opportunity to point out a glaring contradiction in her argument.
His statement was met with immediate contradiction from the expert in the field.
The interviewer pressed the celebrity for clarification, highlighting the contradiction between his words and actions.
The professor encouraged her students to engage in respectful contradiction of each other's theories.

Opposition between two conflicting forces or ideas.

Nouns denoting relations between people or things or ideas.

The politician's words were a contradiction to her actions, as she claimed to support the environment but voted against the green initiative.
The existence of evil in the world is often seen as a contradiction to the idea of an all-powerful and all-good God.
The company's mission statement emphasized the importance of work-life balance, but the long hours and demanding workload were a contradiction to this goal.
The concept of a "jumbo shrimp" is a contradiction in terms, as shrimp are typically small and jumbo implies something large.
The idea of a "benevolent dictator" is a contradiction, as a dictator by definition holds absolute power and is not accountable to the people.