1
as in explanation
a statement given to explain a belief or act
she gave a good reason for her seemingly suspicious behavior
Synonyms & Similar Words
Relevance
2
as in motive
something (as a belief) that serves as the basis for another thing
a firm belief that we are here on earth to help others is the reason for her tireless volunteer work
Synonyms & Similar Words
3
as in excuse
an explanation that frees one from fault or blame
what reason do you have for being in such a bad mood?
Synonyms & Similar Words
4
as in cause
someone or something responsible for a result
what's the meteorological reason for tornadoes?
Synonyms & Similar Words
Antonyms & Near Antonyms
5
as in sense
the ability to learn and understand or to deal with problems
you'll need to use all of your reason to get out of this tight spot
Synonyms & Similar Words
Antonyms & Near Antonyms
6
as in mind
the normal or healthy condition of the mental abilities
was afraid that with all the stress he was under, he'd lose all reason
Synonyms & Similar Words
Antonyms & Near Antonyms
7
as in reasoning
the thought processes that have been established as leading to valid solutions to problems
in a time of national crisis we need to listen to the voice of reason
Synonyms & Similar Words
Antonyms & Near Antonyms
1
as in to understand
to form an opinion or reach a conclusion through reasoning and information
she reasoned that since all of the cakes were on sale for the same price, she might as well pick the biggest one
Synonyms & Similar Words
2
as in to argue
to state (something) as a reason in support of or against something under consideration
he tried to reason that no one in their right mind would buy his brother's old video games, but they were put on the online auction anyway
Synonyms & Similar Words
Cite this Entry
“Reason.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/reason. Accessed 13 Aug. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
