convinced
If you are convinced of something, you are sure that it is true or genuine.
I am convinced of your loyalty.
He was convinced that her mother was innocent.
You do not use words such as ‘very’ or ‘extremely’ in front of convinced. If you want to emphasize that someone has no doubts about something, you use words such as fully or totally in front of convinced.
To be fully convinced that reading is important, they have to find books they like.
I am totally convinced it was an accident.
We are absolutely convinced that this is the right thing to do.
Some people were firmly convinced that a non-human intelligence was attempting to make contact.
Be careful
You do not use a ‘to’-infinitive after convinced. You do not say, for example, ‘He is convinced to have failed’. You say ‘He is convinced that he has failed’.
You do not use a ‘to’-infinitive after convinced. You do not say, for example, ‘He is convinced to have failed’. You say ‘He is convinced that he has failed’.