Irresponsible and Lackadaisical

Irresponsible

Irresponsible adjective - Having or showing a lack of concern for the consequences of one's actions.

Lackadaisical and irresponsible are semantically related. In some cases you can use "Lackadaisical" instead an adjective "Irresponsible".

Lackadaisical

Lackadaisical adjective - Lacking bodily energy or motivation.

Irresponsible and lackadaisical are semantically related. Sometimes you can use "Irresponsible" instead an adjective "Lackadaisical".
Cite this Source
Lackadaisical and Irresponsible. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/irresponsible/lackadaisical
Irresponsible & Lackadaisical. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/irresponsible/lackadaisical>.
Lackadaisical or Irresponsible. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/irresponsible/lackadaisical.
Google Ngram Viewer shows how "irresponsible" and "lackadaisical" have occurred on timeline