Spineless
Spineless adjective - Lacking strength of will or character.
Unsure
Unsure adjective - Not feeling sure about the truth, wisdom, or trustworthiness of someone or something.
Mutual synonyms
Cite this Source
Unsure and Spineless. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/spineless/unsure
Spineless & Unsure. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/spineless/unsure>.
Unsure or Spineless. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/spineless/unsure.
Google Ngram Viewer shows how "spineless" and "unsure" have occurred on timeline