Obelisk

n. A square shaft with pyramidal top, usually monumental or commemorative. 

The Washington Monument is a famous obelisk standing in Washington D.C.

Nefarious

 adj. Wicked in the extreme. 

The nefarious sultan Jafar stole Aladdin's lamp and became an evil genie.

Mendicant

n. A beggar

Some mendicants find creative ways to get money.

Latent

adj. Dormant, hidden, concealed

The latent seeds did not bloom until Spring.

Inane

adj. Silly. 

Students can make up inane excuses for not doing homework.

Guzzle

 v. To swallow greedily or hastily; gulp. 

After eating lots of curry, Hank had to guzzle gallons of beer

Fallacious

adj. Illogical. 

A Midsummer Night's Dream is a fallicious play.