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Definitions

common-sense

[kom-uhn sens] / ˈkɒm ən ˈsɛns /
ADJECTIVE
reasonable
Synonyms
WEAK
astute commonsensical cool down-to-earth hardheaded judicious levelheaded matter-of-fact practical rational realistic sane sensible shrewd sound
Antonyms
WEAK
foolish impractical insane unreasonable unsensible unsound
NOUN
sound judgment
Synonyms
STRONGEST
acumen good sense insight intelligence judgment logic practicality prudence rationality sense sound judgment wisdom wit
WEAK
cool experience good reasoning gumption horse sense levelheadedness mother wit reason reasonableness sensibleness sound sense soundness sweet reason wits
Antonyms
STRONGEST
ignorance ineptness irrationality stupidity
WEAK
foolishness impracticality insanity unreasonableness unsoundness
common sense
NOUN
sound judgment
Synonyms
STRONGEST
good sense horse sense intelligence practicality rationality rule of thumb sense sound judgment sound sense wisdom wit
STRONG
logic mother wit prudence
WEAK
acumen cool experience good reasoning gumption levelheadedness reason reasonableness sensibleness soundness sweet reason wits
Antonyms
STRONG
foolishness impracticality ineptness irrationality stupidity
WEAK
ignorance insanity unreasonableness

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.

If you want consistency then you cannot have common sense too.

From BBC • Apr. 14, 2026

For some, the Bayesian framework is essentially a working definition of rationality or common sense: As one learns more, one’s views change—whether about the weather or the deadliness of a disease like Covid-19.

From The Wall Street Journal • Mar. 29, 2026

It goes against international law and common sense.

From Salon • Mar. 19, 2026

There was a common core to it, which was: Use your common sense, man.

From Slate • Mar. 4, 2026

“You must tell me who cuts your hair ...” Anyone with a lick of common sense knew how to deal with arrogant nobility.

From "The Name of the Wind" by Patrick Rothfuss