My sister is very headstrong.
Even the most patient caregiver may feel challenged when faced with a headstrong child
He needs to quit being so headstrong and take some advice.
Headstrong, in Old French, is "testu."
I am not writing a sentence using that word.
There are several words that can be used as another word for headstrong. One of the best synonyms that can be used for headstrong would be obstinate. Others include ungovernable, bullheaded and stubborn.
I can give you a sentence using the word galaxy.
This is a sentence using the word aviator.
a sentence using the word endotracheal
This is a sentence using the word monomer. :P
I am saying a sentence using the word collagen.
this is a sentence using the word armchair.
The word "headstrong" means determined, and implies an aggressive or obstinate approach to a course of action. Other synonyms are "willful" or "stubborn".