I was unable to go to the carnival because I had loads of homework.
We were unable to avoid drifting into the shoal.
I was unable to use the computer for a while, as it was busy updating the system.
The climber was unable to scale the precipitous cliff side.
The ship meant to collect them was unable to make the rendezvous.
They were unable to define the word properly. He used chalk to define the edges of the figure.
Example of the use of the word "restrain" in a sentence: I was unable to restrain my excitement as the Steelers won the Superbowl Sunday night. Synonymous with: (v)control, contain, curtail
Although she was only twenty-seven and premenopausal, she was still unable to become pregnant.
"Because the man lost his account information, he was unable to make a bank transaction."
I spoke to the company on behalf of my colleague who was unable to attend the meeting.
They plowed the field with the tractor. Even with the tractor they were almost unable to pull the car out of the ditch.
I have no wings, hence I am unable to fly.
Firelight kept us warm. That's how you can do it.