Definition of Blithe as a GRE Vocabulary Flashcard also found in 601 Words You Need to Know to Pass Your Exam with synonyms and illustrations and in real context for advanced learners of English
/blaɪð/ (adj)
Definition
merry and worriless, joyful, gay, cheerful, indifferent, blissful, lighthearted, casual, unconcerned, joyous, carefree, uncaring, nonchalant, easygoing
Example
“I am more and more convinced that to take life over seriously is a frivolous thing.” Eric Hoffer Indeed, being lighthearted, blithe, and having a sense of humor are basic resilience strengthening strategies.
Perhaps, as Kay Redfield Jamison indicates in Exuberance: A Passion for Life, genetics does influence such human characteristics as exuberance and playfulness. But there are some habits that can encourage acting lighthearted. Try some of the following!
Source: https://www.solutionsforresilience.com/
Antonyms
anxious, worried
Parts of speech
Adverb: blithely
Noun: blitheness
Adjective: blithesome