erroneous: (uh-roh-nee-uh[image]s) adj. mistaken or incorrect

Blaine received erroneous information, and was the only partygoer wearing a costume.                                     

rudimentary: (roo-duh-men-tuh-ree) adj. relating to basic facts or principles

In order to play billiards well, one needs a rudimentary knowledge of physics.

erudite: (er-yoo-dahyt) adj. learned or scholarly

Mark was afraid the film about archaeology would be too erudite to enjoy. 

lassitude: (las-i-tood) n. weariness of body or mind

A feeling of lassitude overcame us, so we napped instead of hiked.

dilatory: (dil-uh-tawr-ee) adj. tending to delay or procrastinate

Kristin took a few dilatory steps toward the dentist's office before running away.