ACT Vocabulary: 60 Essential Words to Know

A comprehensive vocabulary review set covering all 60 essential ACT words across rhetorical analysis, tone and attitude, academic writing, and reasoning relationships.

Assert

To state something confidently

Advocate

To publicly support an idea or cause

Refute

To prove an argument or claim wrong

Rebut

To argue against a claim using reasoning or evidence

Substantiate

To support a claim with evidence

Corroborate

To confirm information with additional evidence

Concede

To admit that an opposing point has some merit

Contend

To argue or strongly claim something

Imply

To suggest something without directly stating it

Infer

To reach a conclusion using evidence and reasoning

Undermine

To weaken an argument, belief, or position

Qualify

To limit or modify a statement to make it more accurate

Ambiguous

Having more than one possible meaning; unclear

Credible

Believable or trustworthy

Bias

An unfair preference or tendency toward one side

Skeptical

Doubtful; questioning whether something is true

Cynical

Distrustful of people's motives or sincerity

Optimistic

Hopeful about the future

Pessimistic

Expecting negative outcomes

Objective

Based on facts rather than personal feelings

Subjective

Influenced by personal feelings or opinions

Nostalgic

Feeling affection or longing for the past

Indignant

Angry because something seems unfair

Resigned

Accepting something unpleasant that cannot be changed

Apprehensive

Worried or uneasy about what might happen

Sarcastic

Using mocking or cutting remarks, often meaning the opposite

Ironic

Showing a contrast between what is expected and what happens or is meant

Ambivalent

Having mixed or conflicting feelings

Reverent

Showing deep respect or admiration

Detached

Emotionally uninvolved or distant

Analyze

To examine something carefully to understand it

Synthesize

To combine ideas or evidence into a larger understanding

Evaluate

To judge the value, quality, or effectiveness of something

Interpret

To explain the meaning of something

Significant

Important or meaningful

Relevant

Directly related to the topic

Inherent

A natural or essential part of something

Prevalent

Common or widespread

Inevitable

Certain to happen; unavoidable

Arbitrary

Based on personal choice rather than a clear reason or rule

Conventional

Traditional or commonly accepted

Innovative

New, creative, or original

Diminish

To make smaller, weaker, or less important

Exacerbate

To make a problem or situation worse

Facilitate

To make a process easier

Consequently

As a result

Nevertheless

Despite that; however

Conversely

In contrast; from the opposite perspective

Furthermore

In addition; adding supporting information

Albeit

Although; even though

Moreover

Also; adding another important point

Discrepancy

A difference or inconsistency between things

Contradict

To oppose or conflict with a statement

Distinguish

To recognize or explain differences

Analogous

Similar in some meaningful way

Plausible

Reasonable or believable

Tentative

Uncertain; not final

Nuance

A small but important difference in meaning

Implication

A possible meaning or consequence that is suggested

Concise

Expressing ideas clearly using few words