reasoning

noun

rea·​son·​ing ˈrēz-niŋ 

ˈrē-zᵊn-iŋ

1

: the use of reason

especially : the drawing of inferences or conclusions through the use of reason

2

: an instance of the use of reason : argument

Synonyms of reasoning

• logic
• reason

Examples of reasoning in a Sentence

Could you explain your reasoning?

They told everyone the reasoning behind the decision.

a conclusion based on fallacious reasoning

Humans possess the power of reasoning.

Recent Examples on the Web

The ruling also reflected Sotomayor’s reasoning that owners and players were still bargaining in good faith and that salary policies were mandatory subjects of bargaining. — Michael McCann, Sportico.com, 6 July 2026

The reasoning behind this movement is that America was founded on Christian principles, and, according to some, ought to adopt Christianity as its official religion. — Kenneth Seeskin, Chicago Tribune, 5 July 2026

These areas of the brain are engaged in reasoning, planning, and self-control. — Amanda Gardner, Martha Stewart, 5 July 2026

The court's reasoning lands on the same point the fund rule misses. — Ingmar Rentzhog, Forbes.com, 4 July 2026

Word History

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing reasoning

• line of reasoning

Rhymes for reasoning

• seasoning

Kids Definition

reasoning

noun

rea·​son·​ing

1

: the use of reason

2

: the reasons used in and the proofs that result from thought : argument