The boy's mother looked on the negro race purely from a missionary standpoint, and had never given a serious thought, I am sure, to the negro's social status.
I was just home from school; I knew nothing of the world; I had scarcely a serious thought in my head.
This miserable jeu de mots nevertheless continues, after half a century, to find favour; it passes for a serious thought, nay even for a proof, and has been repeated over and over again.
But his criticism implies no serious thought or any deeper sentiment than pleasure at having found a good laughing-stock.
He has really no answer or vestige of answer for any problems of his, nor indeed of any other time, for he has no basis of serious thought.
Periods of festivity and relaxation they acknowledge, but no fixed days of holy spiritual rest, of serious thought, of soul-expanding and soul-invigorating meditation on the great things of another life.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "serious thought" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.