Word of the Week #4

Mercurial 

AdAge Daily - "The Real Reason Why Wieden Quit Starbucks"

"Rich Silverstein, co-founder of Omnicom Group's Goodby, Silverstein & Partners, which did two stints representing Starbucks, said much of the fault lies with the mercurial Mr. Schultz."

Definition:

mer-cu-ri-al    adjective

1.  subject to sudden or unpredictable changes of mood or mind

2. lively, witty, fast-talking, and likely to do the unexpected

3. containing or caused by the element mercury

4. of the planet Mercury

noun (usu. mercurials) 

1. a drug or other compound containing mercury

Applicable Definitions:

1. subject to sudden or unpredictable changes of mood or mind

2. lively, witty, fast-talking, and likely to do the unexpected

Sentence:

Those with Bipolar disorder are often described as mercurial; they experience dramatic shifts in their mood, from manic highs to deep depression.