healthy
ILL ?
The opposite of prepared is unprepared, meaning unready or ill-equipped. (In cooking the opposite of prepared is raw or uncooked.)
The opposite of ill is well.
The prefix "ill" means "not" or "badly." It is usually used to indicate a negative or opposite meaning in a word, such as in "illegal" or "illiterate."
Being upset about some news.
more opposite, most opposite handsomer, handsomest more ill, most ill farther, farthest or further, furthest more excellent, most excellent
The opposite could be unhealthy, sick, ill, or afflicted.
words with the prefix il: * illegal * illicit * illegible * illiterate * illegitimate * illogical * illustrious * illuminate * ill-served * ill-times * ill-starred * ill-suited * illusion * ill will * illustrate * illusory * illness * ill-treat * illustrator
The prefix meaning the opposite of pre- (prior to, ahead of) is normally post- (after) which is also the opposite of ante- (before).Example: prewar/postwarSome root words use re- (again) to form an afterversion, e.g. preview/review.
The words rhu-ill-ah can be from multiple language back grounds. In Welsh rhu means roaring and ill-ah can mean something similar to a being like a god.
Antonyms of aware could be ignorant or ill-informed; also unconscious, depending on your meaning. (btw, you forgot the B in oblivious)
Illuminate and illogical start with the prefix "il-"