Precipitous: extremely steep; abrupt, sheer

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.  

Serendipity - the occurrence and development of events by chance in a happy or beneficial way.

a fortunate stroke of serendipity

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

Umbrage- To be offended or angered by something rude

Vamoose - depart hurriedly.

"we'd better vamoose before we're caught

Wobble : move or proceed with an irregular rocking or staggering motion or unsteadily and clumsily from side to side.

Xeric: of, characterized by, or adapted to an extremely dry habitat

Yak: a large, stocky, shaggy-haired wild ox of the Tibetan highlands, having long, curved horns; endangered

Zymolytic - of or relating to or causing fermentation 

Ambivalence - the state of having mixed feelings or contradictory ideas about something or someone

Bruxism: The medical term for grinding your teeth while asleep.  

Channelization: To make, form, or cut channels in;

To direct through a channel

Disinclined: unwilling or reluctant

Encroachment: the act or an instance of encroaching;

a violation of the rules in which a player enters the neutral zone and makes contact with an opponent prior to the snap of the ball