Negative emotions

Antipathy

a feeling of strong, often active, dislike or opposition towards something or someone.

Aversion

a feeling of intense dislike or an unwillingness to do something.

To have / feel an aversion to

to experience an intense dislike towards something or someone.

Pet aversion

the thing you dislike most of all.

Averse to

opposed to; usually used with "not" (e.g., "not averse to" means you enjoy or don't mind something).

To detest

to hate.

Loathing / to loathe

intense hatred.

Loathsome

highly unpleasant, causing hatred or disgust.

Abhorrence / to abhor

intense disgust.

Abhorrent

inspiring disgust; morally bad.

Scorn (for) / to scorn

a lack of respect for something.

Scornful

showing a lack of respect or feeling of superiority.

Irritation / to irritate

a feeling of being annoyed.

Distress / to distress

a feeling of being extremely upset or worried.

Alarm / to alarm

a feeling of being very worried or frightened.

-ing adjectives (e.g., distressing)

refer to the person or thing that causes a feeling.

-ed adjectives (e.g., distressed)

refer to the person experiencing the feeling.

Offhand (comment / approach)

showing a rude lack of interest in others.

Officious

too eager to tell others what to do.

Ostentatious

displaying wealth or possessions in a vulgar way.

Pompous

too formal and showing that you think you are more important than other people.

Pretentious

trying to appear more serious or important than you actually are.

Puerile

silly and childish.

Sloppy

not taking care in the way you work (informal).

Fickle

changing feelings suddenly without reason.

Nit-picking

too concerned about unimportant details (informal).

To split hairs

to argue about or focus on small, unimportant details.

Obnoxious

unpleasant and rude.

Dejected

unhappy and disappointed.

Forlorn

sad, alone, and not cared for (literary).

Devastated

very shocked and upset.

Distraught

extremely worried, upset, anxious, or stressed out.

Down

unhappy (informal).

Miserable

very unhappy.