"Upset" and "distress" are synonymous verbs expressing the action of irritating someone, causing them stress or frustration. The other words are related to each other and are verbs expressing the action of "confusing" someone or causing them to feel "awe".

The words "eager" and "enthusiastic" are both positively charged and are in fact synonymous, meaning to be excited about something! The other words do not have similar meanings, all referring to various emotional states, and are not synonymous with "eager."

The verbs "overwhelmed" and "overcome" are the closest in meaning both meaning to be overpowered or conquered (can be used metaphorically, as in "overcome with emotion"). "Overage" is a banking term; "overnight" describes something that lasts through the night until morning; "overachieve" refers to succeeding more than is expected at a task; "underachieve" is an antonym to "overachieve."

"Bewitch" means to "charm" someone, to fascinate or to dazzle someone.

"Incense" means to make someone very angry, to enrage.

"Reject" means to say no, to refuse, to deny.

"Deceive" means to mislead someone, to lie, to be dishonest.

"Curse" means to say a bad word, or to put an evil spell on someone.

"Foster" means to "promote growth" or to nurture or to support something.

"Eradicate" means to eliminate or destroy or remove.

"Polarize" means to divide into opposites, to split.

"Renounce" means to abandon, to reject, to quit.

"Stifle" means to suppress, to restrain, or to prevent from expanding or growing.

The verb "covet" means to want to possess something, to yearn for something, to "desire" something.

The verb "repress" has several different meanings, all of which are loosely related. It can mean to put down an uprising or protest; it can mean to prevent or restrain; it can mean to control and suppress; or it can mean to push down one's emotions so that they are subconscious and concealed. Additionally, "ordain" means make holy or formally approve of; "dispute" means argue against a certain point; "deride" means mock, speak negatively about and make fun of; "assume" means believe something to be true without actually knowing.

"Fret" means to "worry," to agonize, or to brood.

"Sanction" means to authorize, approve or certify.

"Repudiate" means to abandon something, to turn one's back on, to reject something.

"Scorn" means to feel contempt, to sneer or to disdain.

"Appease" means to satisfy, to pacify or to alleviate.

"Incite" means to encourage, to provoke, or to rally people.

"Connote" means to signify, to mean, or to hint at.

"Devise" means to come up with, to concoct, or to mastermind. 

"Diagnose" means to identify a disease or an issue, to determine, to investigate.

"Rescind" means to declare null and void, to cancel or to dismantle.

"Exhort" means to "warn," to advise, or to admonish.

"Chastise" means to scold, to tell off, to reprimand.

"Extol" means to sing the praises of, to celebrate, to commend. 

"Concur" means to agree or to approve.

"Deter" means to inhibit something or someone, to stop them, to obstruct them.