o̲ber·coolEnglish → GermanOxford English–Germano̲ber·cool (informal) A adjective 1 (sehr gelassen) ultra-cool 2 (fabelhaft) really cool (informal)B adverb 1 (sehr gelassen) ‹appear etc.› looking ultra-cool; obercool tun play it dead cool (informal) 2 (fabelhaft) quite fabulously (informal)