[bad] adj worse ; worst [ME] (14c) 1 a: failing to reach an acceptable standard: poor b: unfavorable "make a ~ impression" c: not fresh: spoiled "~ fish" d: not sound: dilapidated "the house was in ~ condition"
2. a: morally objectionable b: mischievous, disobedient
3: inadequate or unsuited to a purpose "a ~ plan" "~ lighting"
4: disagreeable, unpleasant "~ news"
5. a: injurious, harmful b: serious, severe "in ~ trouble" "a ~ cough"
6: incorrect, faulty "~ grammar"
7. a: suffering pain or distress "felt generally ~" b: unhealthy, diseased "~ teeth" 8: sorrowful, sorry 9: invalid, void "a ~ check"
10. bad.der bad.dest slang a: good, great b: tough, mean -- bad.ness n
[2]bad n (15c) 1: something that is bad
2: an evil or unhappy state [3]bad adv (1681): badly