UNIQUE WORDS game to increase our vocabulary - alphabetical order

Lassitude:  a state or feeling of weariness, diminished energy, or listlessness

Non-tenured: used to refer to a teacher in a college or university who does not have tenure (= the right to remain permanently in a job):

Permissible: permitted, allowable

 Moonlight:

Quantum :   any of the very small increments or parcels into which many forms of energy are subdivided 

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.  

Trifecta - a bet in which the person betting forecasts the first three finishers in a race in the correct order.

Vamoose - depart hurriedly.

"we'd better vamoose before we're caught

Xerothermic:  both dry and hot;

adapted to or flourishing in an environment that is both dry and hot