1.anxious(adjective):full of mental distress
Synonyms:afraid,apprehensive
Antonyms:bold,brave
Example Sentence:For perhaps five minutes there was an anxious silence upon the vessel.
2.antithetical(adjective):of the nature of
Synonyms:contradictory,contrary
Antonyms:discrepant,incompatible
Example Sentence:Why speak of the God of nature and the God of grace as two antithetical.
3.befuddlement(verb):to confuse
Synonyms:baffle,bewilder
Antonyms:clarify,clear up
Example Sentence:It is a flat public loss, another attempt to befuddle our thinking.
4.dunderhead(noun):a dunce
Synonyms:ass,birdbrain
Antonyms:brain,genius
Example Sentence: Look at me, Sariette, old boy, and tell me if I look like a dunderhead.
5.exasperate(verb):to irritate or provoke to a high degree
Synonyms:agitate,annoy
Antonyms:aid,appease
Example Sentence:It would not subdue the savages it would only exasperate them.