Definition/Meaning of bullish

• English - Adjective: bullish ( comparative more bullish , superlative most bullish ) Having a muscular physique Aggressively self-confident or assertive; bullheaded He was heavily criticised for his bullish behaviour . ( stock market , of the price of financial instruments ) rising optimistic; overly or foolishly optimistic or hopeful
• English - Etymology: bull +‎ -ish