different between bullish vs dullish

English

bull +? -ish

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) Characterized by rising value.
Optimistic; overly or foolishly optimistic or hopeful

From Middle English dullissh, equivalent to dull +? -ish.

dullish (comparative more dullish, superlative most dullish)

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