A word that you will in one of your essays with the intention of making your paper seem better than it actually. These word are either thought of as a good thing by your teacher as having the paper flow better or deemed as a feeble attempt at quasi-intellectualism. Such words include immense, mere, facetious, or fastidious.
An excerpt from the following English essay contains two booster words in it:
Holden was in an immense depression except for when the mere thought of his brother cheered him.