Fastness and Perfidy

Opposite meaning words

Fastness noun - Adherence to something to which one is bound by a pledge or duty.

Usage example: his uncompromising fastness to the cause of freedom was beyond question

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Perfidy is an antonym for fastness.

Nearby Word: fasten

Perfidy noun - Lack of faithfulness especially to one's husband or wife.

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Fastness is an antonym for perfidy.

Nearby Words: perfidious, perfidiously

Cite this Source

Perfidy and Fastness. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/fastness/perfidy

Fastness & Perfidy. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/fastness/perfidy>.

Perfidy or Fastness. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/fastness/perfidy.

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