Fidelity and Insidiousness

Opposite meaning words

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

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Insidiousness is an antonym for fidelity.

Insidiousness noun - Subtle and cumulative harmfulness (especially of a disease).

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Fidelity is an antonym for insidiousness in topics: lying, dishonesty, indirection.

Cite this Source

Insidiousness and Fidelity. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/fidelity/insidiousness

Fidelity & Insidiousness. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/fidelity/insidiousness>.

Insidiousness or Fidelity. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/fidelity/insidiousness.

Google Ngram Viewer shows how "fidelity" and "insidiousness" have occurred on timeline