Lacking
Lacking adjective - Not coming up to an expected measure or meeting a particular need.
Undependable and lacking are semantically related. In some cases you can use "Undependable" instead an adjective "Lacking".
Undependable
Undependable adjective - Not worthy of reliance or trust.
Lacking and undependable are semantically related. Sometimes you can use "Lacking" instead an adjective "Undependable".
Mutual synonyms
Cite this Source
Undependable and Lacking. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/lacking/undependable
Lacking & Undependable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/lacking/undependable>.
Undependable or Lacking. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/lacking/undependable.
Google Ngram Viewer shows how "lacking" and "undependable" have occurred on timeline