no bueno
No bueno (adjective) means Bad, unacceptable or a poor idea; used lightly in English to mark something as not good. Example: “Texting your ex at 2am? No bueno.”
How to use no bueno
Learner’s notesIn plain EnglishA playful way of saying something is bad.
Slang, chiefly American. Avoid in formal or professional writing.
It works as a whole-sentence verdict, usually after a comma or full stop, rather than before a noun.
Trace the full origin ↓Fill the gap
Can you complete this real example?
Texting your ex at 2am? _____.
Etymology
From Spanish no bueno, literally 'not good'. The phrase is not idiomatic Spanish in this use; Spanish speakers would normally say no es bueno or no sirve.