Careless
Careless adjective - Not paying or showing close attention especially for the purpose of avoiding trouble.
Happy and careless are semantically related in untroubled topic. In some cases you can use "Happy" instead an adjective "Careless".
Happy
Happy adjective - Coming or happening by good luck especially unexpectedly.
Careless and happy are semantically related in untroubled topic. Sometimes you can use "Careless" instead an adjective "Happy".
Mutual synonyms
Both words in one sentence
- Brave New World describes the drug Soma, which makes people happy and careless for a few hours to days.
Source: Anti-Escapism Aesop -
Kai'xin means happy, Tian'xin means sweet, Chu'xin means careless, Xiao'xin means careful.
Source: Animation / Happy Heroes - The result of it being him gradually falling in love with her and her own fascination of his wit, knowledge and Mysterious Past.Anyway, the princess is still happy when her rather boyish and careless cousin Siegfried of Grünwald arrives to rescue her and restore her to the throne.
Cite this Source
Happy and Careless. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/careless/happy
Careless & Happy. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/careless/happy>.
Happy or Careless. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/careless/happy.
Google Ngram Viewer shows how "careless" and "happy" have occurred on timeline