adjective

cautious

cautious, careful, wary

He is a very cautious driver.

He is a very cautious driver.

She was cautious about making promises.

She was cautious about making promises.

((to be)) cautious to be careful not to take risks He is a cautious investor.

((to be)) cautious ((about/of sth./-ing)) to be careful about something Be cautious about what you say online.

Synonyms: careful, wary, prudent; Antonyms: reckless, careless, rash

From 'caution' + the adjective-forming suffix '-ous', meaning 'full of'. So, 'full of caution'.

If you are 'full of caution', you are a 'cautious' person.

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