Not effective and Worthwhile

Opposite meaning terms

Definitions of Not effective not found.

Worthwhile is an antonym for not effective in useless topic.

Worthwhile adjective - Sufficiently valuable to justify the investment of time or interest.

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Not effective is an antonym for worthwhile.

Cite this Source

Worthwhile and Not effective. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/not_effective/worthwhile

Not effective & Worthwhile. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/not_effective/worthwhile>.

Worthwhile or Not effective. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/not_effective/worthwhile.

Google Ngram Viewer shows how "not effective" and "worthwhile" have occurred on timeline