bull·ish 
(blĭsh)
(blĭsh)adj.
1.
a. Having a heavy muscular physique.
b. Bullheaded.
2.
a. Causing, expecting, or characterized by rising stock market prices: "Cheaper energy is bullish because it stimulates growth" (Eric Gelman).
b. Optimistic or confident: bullish on the prospects of reaching a negotiated settlement.
bullish·ly adv.
bullish·ness n.