SICKISH Meaning of SICKISH in English [sick.ish] adj (1581) 1 archaic: somewhat ill: sickly 2: somewhat nauseated: queasy 3: somewhat sickening "a ~ odor" -- sick.ish.ly adv -- sick.ish.ness n Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012