Desultory

1. adj.

Definition:  lacking a plan, purpouse, or enthusiasm; not connected with the main subject

Example: a desultory house

Sentence: Our desultory expedition ended in disaster when noone knew where to meet at the end.

Concatenate

1. v.

Definition: to link together, in a series or a chain

Example: concantenate a stapler and a tape dispenser

Sentence:  I concantenated two words to make a new, unique one.

Derisory

1. adj.
Definition: ridiculously small or inadequate
Example: a derisory pay raise
Sentence: I heard of his derisory effort to stop her from going on vacation.
Notes:  This word is pronounced with a long "i" as opposed to a short one.  It is very easy to mess up, so be careful!  Also, it normally describes things that are said or done, not objects.

Supercilious

1. adj.
Definition: Behaving or looking as though one thinks one is superior to others
Example:  the supercilious celebrity
Sentence:  At the party, it was easy to see the supercilious hostess in the crowd.
Notes:  Probably one of the most famous uses of this word is in the first chapter of F. Scott Fitzgerald's "The Great Gatsby" in the sentence "Now he was a sturdy, straw haired man of thirty with a rather hard mouth and a supercilious manner."

Persnickety

1. adj.

Definition: turning too much attention on trivial or minor details

Example: the persnickety artist

Sentence: The persnickety chef gently placed the delicate garnish on the plate.

Notes:  Since I was really little, I've always loved this word.  I remember I used to be so persnickety about putting a sticker so that it completely covered the outline of where it was supposed to go!