till cows come home (adverb) always: forever; continually
Sinonime: consistently,
constantly, eternally,
ever, everlastingly, evermore, for keeps, forevermore, in perpetuum,
invariably,
perpetually,
regularly,
repeatedly, till blue in the face, till cows come home, till hell freezes over, unceasingly, without exception
Antonime: at no time,
never