undersized russian

• низкоро́слый

  undersized, shortish

• малова́тый

  rather small, somewhat small, a little too small, undersized

• недоме́рок

  undersized object

• малова́т

  a little too small, not the right size, undersized

• малоро́слый

  undersized, stunted

• недоро́сток

  undersized person, stunted person, runt

  stripling, raw youth, immature youth, youngster