What is the old term, or terms, for "designer stubble"?

Solution 1:

from the OED thesaurus:

bristle ~1300

the short hairs on the face of men when thickened and stiffened…

whisker ~1600

The hair that grows on an adult man's face; formerly commonly applied to that on the upper lip, now… plural: usually collective

stubble 1596

collective singular. transferred. A rough surface or short growth likened to the ‘stubble’ of grain, esp. the short bristly growth on a man's face

five o'clock shadow 1937

used attributively in five o'clock shadow (see quot.1937), five-o'clock tea (colloquial shortened a five o'clock).Time 11 Oct. ‘5 o'clock Shadow’—that unsightly beard growth which appears prematurely at about 5 P.M., looks bad.