Cheesy, lousy and flimsy are used to describe something that is bad. Mind that cheesy and lousy are informal.
Cheesy = of bad quality or in bad taste
cheesy hotel music
Lousy = very bad
I had a lousy weekend.
I feel lousy - I'm going home.
Flimsy = very thin, or easily broken or destroyed:
You won't be warm enough in that flimsy dress.
We spent the night in a flimsy wooden hut.
The words lousy and flimsy we can use with excuse and argument.
When I asked him why he was late, he gave me some flimsy/lousy excuse about having car trouble.