Tutoring English, new, short, descriptive words are welcome additions to the vocabulary. The tutor mentions prolix.

prolix: using more words than needed, in a clumsy way; overly long for its meaning.

The essay was prolix; the student had padded it to fill the word count.

Source:

Barber, Katherine et al. Oxford Canadian Dictionary of Current English. Don Mills: Oxford University Press, 2005.

Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.