AP Lang Vocabulary: Parts of Speech and Definitions

Mercurial

Someone who has sudden or unpredictable changes in mood.

Braggadocious

Arrogant or boastful behavior.

Harbinger

Someone or something that signals or announces something else.

Censure

Express severe disapproval of (someone or something), especially in a formal statement.

Omission

Something left out or excluded, like the truth.

Recalcitrant

Someone who is stubbornly uncooperative with authority or discipline.

Pernicious

Something that is harmful in a subtle or gradual way.

Stalwart

Someone who is very loyal or reliable.

Myriad

of an indefinitely great number; innumerable.

Ephemeral

Short-lived or not long lasting.

Affable

Someone who is friendly, good-natured, and easy to talk to.

Surfeit

An excess of something

Agile

able to move quickly and easily

Ply

Work with (a tool, especially one requiring steady, rhythmic movements

Flout

Openly disregard (a rule, law or convention)

Flaunt

To show off

Upbraid

(v.) to blame, scold, find fault with

Sisphean

Requiring endless effort; without result or success

Purloin

To steal in a sneaky and stealthy way

Ergonomics

The study of people's efficiency in their working environment

Penury

Extreme state of poverty