A few more words to add to your basket of words to help you decorate your speech.

to absorb food or ideas completely- Assimilate
Kindly attend this workshop and assimilate as many good and new ideas as possible.

to establish the truth or validity of something- Authenticate
You have to submit all the relevant documents by tomorrow to authenticate your identity.

a person with some unusual habit- Eccentric
Why does he keep washing his hands after every few minutes? Is he eccentric?

to magnify an issue beyond the limits of truth- Exaggerate
Stop exaggerating! I know why you couldn’t finish this task.

one who/which cannot be corrected- Incorrigible
Better not advise the boss! He is incorrigible.