bescheuert
stupid
A colloquial, derogatory word for stupid, crazy, or nonsensical.
Das war eine total bescheuerte Idee, jetzt haben wir den Salat.
That was a totally stupid idea, and now we're in a mess.

stupid / lousy
Loading your saved state.
stupid
A colloquial, derogatory word for stupid, crazy, or nonsensical.
Das war eine total bescheuerte Idee, jetzt haben wir den Salat.
That was a totally stupid idea, and now we're in a mess.

'Bescheuert' (stupid/lousy) is a strongly colloquial word. It can be perceived as impolite or even insulting, especially when applied to people. Use it only in very informal situations.
Ich finde diese neue Regelung total bescheuert.
I think this new regulation is totally stupid.
You can use 'bescheuert' (stupid/lousy) flexibly: before a noun, after a verb like 'sein' (to be), or even as a standalone exclamation to express annoyance or disbelief.
Das ist ein bescheuerter Film.
That's a stupid film.
If 'bescheuert' (stupid/lousy) refers to a person, an idea, or an action, it means 'dumm' (stupid) or 'verrückt' (crazy). If it refers to a general situation, a day, or the weather, it tends to mean 'schlecht' (bad) or 'ärgerlich' (annoying).
Frag nicht so bescheuert!
Don't ask such a stupid question!
bad
'schlecht' and 'bescheuert' can both express that something is not good, unpleasant, or annoying. 'schlecht' is more neutral and fits in many situations, for example with quality, weather, results, or conditions. 'bescheuert' is colloquial and sounds much more negative. It fits especially when you find something stupid, nonsensical, or irritating. In factual conversations, 'schlecht' is more natural; 'bescheuert' is used more among friends or when you are annoyed.

Den Termin so spät am Abend finde ich ziemlich bescheuert.
I think scheduling the appointment so late in the evening is pretty stupid.
Das Licht im Raum ist schlecht, deshalb kann ich den Text kaum lesen.
The light in the room is bad, so I can hardly read the text.