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CPS HSAT Vocabulary · Tier 1

groundless

adjective

Definition

without basis or reason

In a sentence

Her fears proved groundless.

Similar words

  • baseless
  • unfounded

Why this word matters: groundless appears in academic reading at the 8th-grade level and is exactly the type of word that shows up on the CPS HSAT Reading section. Practice it in context with our spaced-repetition system at vocabulary.