(Blithe can mean carefree/lighthearted, or casual/showing a lack of due concern.)
"The blithe atmosphere of the city was soon lost to the war."
"He spoke with blithe ignorance of the true situation."
"Her blithe manner seemed unusual given the desperate circumstance we were in."
When she spoke to Janice, not knowing that Janice's heart was broken, Eva's comments sounded blithe and callous.
"The drivers who blithely ignored the warnings soon found themselves caught in the flood."
"He watched the young people blithely strolling through the commune."
The fairies danced blithely in the flowering meadow.
The man was very blithe about the break up with his girlfriend, because they had not been dating for barely a week.
blithesome :)
a sentence using the word endotracheal
Jill was frustrated by her friend Tom's blithe attitude toward the problems she was having with her boss. Blithe is an adjective.
She sure is blithe spirit!
She greeted everyone with a blithe smile, oblivious to the troubles around her.
"His blithe manner disguised a deep-seated fear of failure." "The blithe teenagers of the 1960s often became hapless parents themselves by the 1980s." "Watson still marveled at the blithe disregard Holmes had for deadly peril."
Her blithe personality fits her just right.
The fairies danced blithely in the flowering meadow.
Percy Shelley's poem,'To a Skylark', opens with the line,'Hail to thee, blithe spirit!'.
The man was very blithe about the break up with his girlfriend, because they had not been dating for barely a week.
I am not writing a sentence using that word.
blithe
blithesome :)
The root word of "blithely" is "blithe." "Blithe" means showing a casual and cheerful indifference that suggests a lack of concern.
I can give you a sentence using the word galaxy.