be careful

VERB

look out

Synonyms

WEAK

be alert be on guard beware check out have a care heads up hearken keep an eye out keep tabs listen mind notice pay attention peg pick up on scope shotgun size up spot spy watch out

Antonyms

WEAK

disregard ignore neglect

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

be careful

"It's not fake, it's actually amazing. But we have to be careful... welcome to the new world of super intelligence."

From BBC ● Oct. 1, 2026

People told him to be careful, especially with the ongoing wars in the region.

From Los Angeles Times ● Oct. 1, 2026

We should be careful before leaping to grand conclusions.

From The Wall Street Journal ● Sep. 28, 2026

On that note, be careful about putting vacations and dinners out on your own credit card in order to keep up.

From MarketWatch ● Sep. 23, 2026

“But you need to be careful what you say on the telephone when Cloke’s in your house.”

From "The Secret History" by Donna Tartt