UNIQUE WORDS game to increase our vocabulary - alphabetical order

Hellacious (slang) - very great, bad, or overwhelming.

"there was this hellacious hailstorm"  

Jactitation:  a false boasting or claim, especially one detrimental to the interests of another;

 Extreme restlessness or tossing in bed, as can occur with some forms of acute disease

Lodestar - one that serves as an inspiration, model, or guide, i.e. the north star

Novelistic:  of, relating to, or characteristic of novels  

Ponderous - slow and clumsy because of great weight.

"her footsteps were heavy and ponderous" 

Rotable - a Qualified Spare Part that wears over time and can be repeatedly restored to a serviceable condition over a period approximating the life of the flight equipment to which it relates.  

Tercel Male hawk.

Vamoose - depart hurriedly.

"we'd better vamoose before we're caught