The Collaborative International Dictionary of English v.0.48:

Hirsute \Hir*sute"\, a. [L. hirsutus; prob. akin to horridus
   horrid. Cf. Horrid.]
   1. Rough with hair; set with bristles; shaggy.
      [1913 Webster]

   2. Rough and coarse; boorish. [R.]
      [1913 Webster]

            Cynical and hirsute in his behavior.  --Life of A.
                                                  Wood.
      [1913 Webster]

   3. (Bot.) Pubescent with coarse or stiff hairs. --Gray.
      [1913 Webster]

   4. (Zool.) Covered with hairlike feathers, as the feet of
      certain birds.
      [1913 Webster]

WordNet (r) 3.0 (2006):

hirsute
    adj 1: having or covered with hair; "Jacob was a hairy man"; "a
           hairy caterpillar" [syn: hairy, haired, hirsute]
           [ant: hairless]

The Free On-line Dictionary of Computing (19 January 2023):

hirsute

   Occasionally used as a humorous synonym for hairy.

   [Jargon File]


The Jargon File (version 4.4.7, 29 Dec 2003):

hirsute
 adj.

    Occasionally used humorously as a synonym for hairy.