unpleasant or disgusting especially to the senses; "offensive odors"
causing anger or annoyance; "offensive remarks"
for the purpose of attack rather than defense; "offensive weapons"
violating or tending to violate or offend against; "violative of the principles of liberty"; "considered such depravity offensive against all laws of humanity"
that which is below standard or expectations as of ethics or decency; "take the bad with the good"
feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad'); "my throat feels bad"; "she felt bad all over"; "he was feeling tough after a restless night"
(of foodstuffs) not in an edible or usable condition; "bad meat"; "a refrigerator full of spoilt food"
not working properly; "a bad telephone connection"; "a defective appliance"
reproduced fraudulently; "like a bad penny..."; "a forged twenty dollar bill"
having undesirable or negative qualities; "a bad report card"; "his sloppy appearance made a bad impression"; "a bad little boy"; "clothes in bad shape"; "a bad cut"; "bad luck"; "the news was very bad"; "the reviews were bad"; "the pay is bad"; "it was a bad light for reading"; "the movie was a bad choice"
characterized by wickedness or immorality; "led a very bad life"
capable of harming; "bad habits"; "bad air"; "smoking is bad for you"
physically unsound or diseased; "has a bad back"; "a bad heart"; "bad teeth"; "an unsound limb"; "unsound teeth"
very intense; "a bad headache"; "in a big rage"; "had a big (or bad) shock"; "a bad earthquake"; "a bad storm"
not financially safe or secure; "a bad investment"; "high risk investments"; "anything that promises to pay too much can't help being risky"; "speculative business enterprises"
nonstandard; "so-called bad grammar"
below average in quality or performance; "a bad chess player"; "a bad recital"
not capable of being collected; "a bad (or uncollectible) debt"