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

On a fundamental level, AI's probabilistic reasoning introduces uncertainties. — Chris Dimitriadis, Forbes.com, 20 July 2026

There’s a difference between repeating a sequence of words and understanding something deeply enough to answer questions about it and defend your reasoning. — Ryan Hawk, Fortune, 20 July 2026

Whatever the reasoning, financial advisers typically caution investors against keeping too much of their investments in cash, because a mix of stocks and bonds historically yields a better return. — Daniel De Visé, USA Today, 18 July 2026

And yet, the reasoning behind choosing a teenaged shortstop still holds true today. — John Romano, The Orlando Sentinel, 18 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