underengined

Etymology
From.

Adjective

 * 1) having too small an engine in relation to its size.
 * 2) * 1889-1913,, "From Sea to Sea", 
 * Only under the most favorable circumstances of wind and steam can their underengined boats cover the distance in fifteen days. Our City of Peking, for instance, had been jogging along at a gentle ten knots an hour, a pace out of all proportion to her bulk.