Invertebrate and Tough


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Invertebrate adjective – Lacking strength of will or character.
Usage example: an invertebrate Congress that blithely went along with the President's ill-conceived plan

Tough is an antonym for invertebrate.
Antonyms for Invertebrate


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Tough adjective – Not easily chewed.
Invertebrate is an antonym for tough.
Nearby Words: toughness, toughen, toughening, tougher, toughed
Antonyms for Tough
Similar words of invertebrate
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Similar words of tough
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Tough and Invertebrate. (2016). Retrieved 2021, May 18, from
Invertebrate & Tough. N.p., 2016. Web. 18 May. 2021. <>.
Tough or Invertebrate. 2016. Accessed May 18, 2021.

Antonyms for invertebrate
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Antonyms for tough
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Google Ngram Viewer shows how "invertebrate" and "tough" have occurred on timeline: