Reading & WritingStandard English ConventionsLow frequency

SAT Reading & Writing: Hyphens in Compound Adjectives

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What you need to know

The concept, explained

  • 1

    A hyphen connects two or more words to create a single compound adjective modifying a noun.

  • 2

    Use a hyphen when the compound adjective comes BEFORE the noun: "a fast-paced thriller."

  • 3

    Do NOT use a hyphen if the words come AFTER the noun: "the thriller was fast paced."

  • 4

    Do NOT use a hyphen if the first word ends in -ly (adverb): "a highly trained athlete" (no hyphen).

  • 5

    The SAT tests hyphens sparingly, usually prioritizing commas, dashes, and semicolons, but differentiating between an adverb-adjective pair and a compound adjective is the key trap.

Common mistakes
  • Hyphenating adverbs ending in -ly (e.g., "rapidly-changing climate").
  • Hyphenating compound modifiers after the noun.
Try a sample question

SAT-style practice

The board requested a _____ analysis of the quarterly budget.

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