cautious

adjective

cau·​tious ˈkȯ-shəs How to pronounce cautious (audio)
Synonyms of cautious
: careful about avoiding danger or risk
cautious investors
cautious optimism
cautiously adverb
cautiousness noun
Choose the Right Synonym for cautious

cautious, circumspect, wary, chary mean prudently watchful and discreet in the face of danger or risk.

cautious implies the exercise of forethought usually prompted by fear of danger.

a cautious driver

circumspect suggests less fear and stresses the surveying of all possible consequences before acting or deciding.

circumspect in his business dealings

wary emphasizes suspiciousness and alertness in watching for danger and cunning in escaping it.

keeps a wary eye on the competition

chary implies a cautious reluctance to give, act, or speak freely.

chary of signing papers without having read them first

Examples of cautious in a Sentence

Any cautious tourist will guard her passport. You cannot be overly cautious when you're driving in snow. He answered the question with a cautious reply.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
According to some analyses, the rule led to more defensive and cautious play from players too afraid to concede the game-winning goal, despite the intention of the rule to encourage more exciting play in extra time. Kierra Frazier, CBS News, 11 June 2026 But be cautious about flipping your shares. Danielle Chemtob, Forbes.com, 11 June 2026 The move suggests a broader shift in Tehran, where a new generation of leaders is increasingly abandoning the cautious, reactive approach that long defined the Islamic Republic’s strategy towards its adversaries. Abbas Al Lawati, CNN Money, 10 June 2026 Ciara is very cautious and played it slow in opening her heart up to West. Marlow Stern, Variety, 10 June 2026 See All Example Sentences for cautious

Word History

Etymology

see caution entry 1

First Known Use

1614, in the meaning defined above

Time Traveler
The first known use of cautious was in 1614

Browse Nearby Words

Cite this Entry

“Cautious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cautious. Accessed 16 Jun. 2026.

Kids Definition

cautious

adjective
cau·​tious ˈkȯ-shəs How to pronounce cautious (audio)
: marked by or given to caution
a cautious reply
cautiously adverb
cautiousness noun

More from Merriam-Webster on cautious

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster