dubious

Pronunciation: adjective. Synonyms: doubtful, unresolved, skeptical

adjective

Definition of dubious

(of a person's feeling) suspicious of

Synonyms for dubious

  • doubtful
  • unresolved
  • skeptical

dubious in a Sentence

  1. John was dubious that a "speed-reader" could truly understand the content of a book.

Why dubious Matters for GRE & SAT

"dubious" is a adjective that means "(of a person's feeling) suspicious of" closely related to words like "doubtful", "unresolved", "skeptical". As a word starting with D, it belongs to a cluster of GRE and SAT vocabulary that test-takers often encounter in Verbal Reasoning, Text Completion, and Reading Comprehension sections.

On the GRE, understanding "dubious" helps you distinguish between closely related answer choices in Sentence Equivalence questions. On the SAT, recognizing this word in context strengthens your performance on Craft & Structure and Words in Context questions. Seeing how "dubious" is used in sentences — like the examples above — builds the contextual understanding that standardized tests reward.

Study tip: Start with the definition and part of speech (adjective). Then learn its 3 synonyms to build a word network. Finally, practice with spaced repetition to move "dubious" into long-term memory.

How to Remember dubious

One effective way to remember "dubious" (adjective) is to group it with similar words you already know: "doubtful" and "unresolved" and "skeptical". When you encounter "dubious" on a test, these synonym connections help you quickly recall its meaning — "(of a person's feeling) suspicious of".

Use flashcard apps with spaced repetition to review "dubious" at increasing intervals until it becomes automatic.

More Vocabulary Words Starting with D

  • daunting — scary or frightening; (of a task) seeming impossible
  • dawdle — move slowly and without purpose
  • dearth — lack of something in a particular area
  • dearth — A scarcity or lack of something
  • debate — A formal discussion on a particular topic
  • debilitate — To make someone weak and infirm
  • debilitating — weakening or impairing strength
  • debunk — prove a belief or idea false
  • debunk — To expose the falseness of a myth or belief
  • decade — A period of ten years