shouldn't
/ˈʃʊdənt/
Proposed by a contributor, not yet supported by evidence.
Also seen as: shouldn'ts
Sense 1
Meaning · English
Should not (negative auxiliary)
Verb
Examples
I shouldn't be telling you all this. It'll make you angry.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Meaning · English
Something that should not be done.
NounRegister: informal
Examples
Being a list-o-maniac, I suggested we make a list of the "shoulds" and "shouldn'ts." So in the darkness of hazy sleep, I began to mentally prepare mine. The first item on the "should" side was easy: a sibling for our 3-year-old daughter.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “shouldn't” mean?
Should not (negative auxiliary)
Is “shouldn't” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.