Disgraceful means shockingly bad or shameful, worthy of disgrace or disapproval. When something is disgraceful, it falls so far below acceptable standards that it brings shame or dishonor.

A disgraceful performance is embarrassingly bad, like a team that doesn't even try or a student who breaks the rules in front of everyone. Disgraceful behavior violates basic standards of decency or fairness. If someone lies to their best friend, steals from a charity, or bullies someone weaker, those actions are disgraceful because they violate trust and basic human decency.

The word carries real weight. Calling something disgraceful means it's genuinely shameful, beyond mere disappointment. A messy room might be untidy, but a disgraceful room would be so filthy that it's unhealthy. A losing sports team might feel disappointed, but a disgraceful loss would mean they gave up or didn't respect their opponents.

Disgrace itself means a loss of respect or honor, so something disgraceful is serious enough to damage someone's reputation or standing. When people say “that's disgraceful,” they're expressing strong disapproval, not just mild criticism.