wellish adjective 2adverb 1forms 2 adjective2 •Somewhat well; reasonable; adequate.Come, I say, old boy, you are going it strongish: rot me, if the garden wasn't pretty wellish. — 1849 •Somewhat well; in okay but not great health.The Emperor looked wellish but a bad colour. — 1980 adverb1 •Somewhat well; in a fairly satisfactory manner.He knew his letters pretty wellish, but no more. — 1885 formsmore wellish · most wellish