undersize

About 0.06 uses per million words.

Meaning

1. adjective Smaller than normal, undersized.

   This isn't a pony, it's just an undersize horse.

2. adjective Smaller than appropriate, expected or sufficient.
3. adjective Small enough to fit through a screen.

Similar words

small little undersized subnormal unsized undersparred undergrown underaverage unsmall unsizeable

Often followed by

and to is material from particles in of or