I'd say it this way: bad code doesn't robustly handle all the use cases, mis-interprets inputs sometimes, or is a mess to read and debug. Yes, it matters what

I'd say it this way: bad code doesn't robustly handle all the use cases, mis-interprets inputs sometimes, or is a mess to read and debug. Yes, it matters what the code looks like. Knew a guy, named everything in his code a letter of the alphabet. a,b,c and when he got to z started za, zb etc. That was 'bad code'. Or, it was 'Low Quality Code'. Nobody wants junk like that. Even if it passes tests, is robust etc.