Obligation
Obligation noun - Something one must do because of prior agreement.
Validness and obligation are semantically related In some cases you can use "Validness" instead a noun "Obligation".
Validness
Validness noun - The quality of having legal force or effectiveness.
Obligation and validness are semantically related in energy topic. Sometimes you can use "Obligation" instead a noun "Validness".
Cite this Source
Validness and Obligation. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/obligation/validness
Obligation & Validness. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/obligation/validness>.
Validness or Obligation. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/obligation/validness.
Google Ngram Viewer shows how "obligation" and "validness" have occurred on timeline