There were the oriole, the cat bird, the yellow throat, the brown thrush and the red bird, all putting forth at once their charmingest efforts.
Even when I was laid up 10 days at Jeypore in India we had the charmingest times with English friends.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "charmingest" in a variety of sentences. We hope that you will now be able to make sentences using this word.