Ill
Part of speech: adjective
Definition: Suffering from a disease. Having an urge to vomit. Bad, often connoting abuse or neglect. Sublime, with the connotation of being so in a singularly creative way. [This sense sometimes declines in AAVE as ill, comparative iller, superlative illest.] Extremely bad (bad enough to make one ill). Generally used indirectly with to be.
Part of speech: adverb
Definition: Badly; very incompletely. Often hyphenated to form an adjectival phrase. Scarcely.
Part of speech: noun
Definition: Trouble; distress; misfortune; adversity. Harm or injury. Evil; moral wrongfulness. A physical ailment; an illness. Unfavorable remarks or opinions. PCP.
Example sentence: To run away from trouble is a form of cowardice and, while it is true that the suicide braves death, he does it not for some noble object but to escape some ill.
Bad
Part of speech: noun
Definition: error, mistake
Part of speech: adverb
Definition: Badly.
Part of speech: verb
Definition: To shell (a walnut).
Part of speech: adjective
Definition: Not good; unfavorable; negative.Seemingly non-appropriate, in manners, etc.Not suitable or fitting.tricky; stressful; unpleasantevil, wickedfaulty; not functionalOf food, spoilt, rotten, overripe.Of breath, malodorous, foul.bold and daringSevere, urgent (of a need or want).fantastic
Example sentence: It is easy to hate and it is difficult to love. This is how the whole scheme of things works. All good things are difficult to achieve; and bad things are very easy to get.