bad (Adjective) — Having undesirable or negative qualities. ex. "a bad report card" ex. "his sloppy appearance made a bad impression" ex. "a bad little boy" ex. "clothes in bad shape" ex. "a bad cut" ex. "bad luck" ex. "the news was very bad" ex. "the reviews were bad" ex. "the pay is bad" ex. "it was a bad light for reading" ex. "the movie was a bad choice"
bad (Adjective) — Very intense. ex. "a bad headache" ex. "had a bad shock" ex. "a bad earthquake" ex. "a bad storm"
bad (Adjective) — Feeling physical discomfort or pain ('tough' is occasionally used colloquially for 'bad'). ex. "my throat feels bad" ex. "she felt bad all over"
bad (Adjective) — (of foodstuffs) not in an edible or usable condition. ex. "bad meat"
bad (Adjective) — Feeling or expressing regret or sorrow or a sense of loss over something done or undone. ex. "he felt bad about breaking the vase"
bad (Adjective) — Not capable of being collected. ex. "a bad debt"
bad (Adjective) — Below average in quality or performance. ex. "a bad chess player" ex. "a bad recital"
bad (Adjective) — (linguistics) nonstandard. ex. "so-called bad grammar"
bad (Adjective) — Not financially safe or secure. ex. "a bad investment"
bad (Adjective) — Physically unsound or diseased. ex. "has a bad back" ex. "a bad heart" ex. "bad teeth"
bad (Adjective) — Capable of harming. ex. "bad air" ex. "smoking is bad for you"
bad (Adjective) — Characterized by wickedness or immorality. ex. "led a very bad life"
bad (Adjective) — Reproduced fraudulently. ex. "like a bad penny..."
bad (Adjective) — Not working properly. ex. "a bad telephone connection"
bad (Noun) — That which is below standard or expectations as of ethics or decency. ex. "take the bad with the good"
bad (Adverb) — With great intensity ('bad' is a nonstandard variant for 'badly'). ex. "it hurts bad" ex. "we need water bad"
bad (Adverb) — Very much; strongly. ex. "he wants a bicycle so bad he can taste it"