It can be, depending on the way it's used.
When the woman realized that her child was kidnapped, she began to cry hysterically.
She hysterically laughed for a few moments. The boy went hysterical. Don't laugh hysterically in a classroom, or you'll get punished!
hysterically
Hysterically is an adverb.
Can you use the word concluding in a sentence? Done.
You can use the word Truss in a sentence like this.
No, hysterically is an adverb.The adjective would be hysterical.
Hysterically is the correct spelling, just as you have it in the question.
Just use it! Or do you mean, can you use the word beheld in a sentence.
Since that is not a word I would not attempt to use it in a sentence.
You just did use the word colonize in a sentence.