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Definition of "spineless" [spine•less]

  • Lacking courage or willpower. (adjective)
  • Biology Having no spiny processes. (adjective)
  • Biology Lacking a spinal column; invertebrate. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "spineless" in a sentence
  • "She smiled as she made the word "spineless" into a compliment."
  • "To sum up this view in a single word: we wish we had a nickel for every time a blogger modified the word "moderate" with the word "spineless.""
  • "The spineless is a little tame, but it's still a good foil for other vegetables and sauces."