steam-powered

( adj.)

   Old-fashioned  or  underpowered;  archaic.  This term does not have a
   strong  negative loading and may even be used semi-affectionately for
   something  that clanks and wheezes a lot but hangs in there doing the
   job.

[glossary]
[Reference(s) to this entry by made by: {stone knives and bearskins}]