Invalid
Invalid adjective - Having no legal or binding force.
Usage example: the treaty is invalid once one side violates it
Ineffective is a synonym for invalid. In some cases you can use "Ineffective" instead an adjective "Invalid".
Ineffective
Ineffective adjective - Not producing the desired result.
Invalid is a synonym for ineffective in null and void topic. Sometimes you can use "Invalid" instead an adjective "Ineffective".
Mutual synonyms
Related pairs
- inadequate and invalid
- inadequate and ineffective
- helpless and invalid
- helpless and ineffective
- feeble and invalid
- feeble and ineffective
- weak and invalid
- weak and ineffective
- worthless and invalid
- worthless and ineffective
- inoperative and invalid
- inoperative and ineffective
- bad and invalid
- bad and ineffective
Cite this Source
Ineffective and Invalid. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/invalid/ineffective
Invalid & Ineffective. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/invalid/ineffective>.
Ineffective or Invalid. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/invalid/ineffective.
Google Ngram Viewer shows how "invalid" and "ineffective" have occurred on timeline