1. expose to too little light; - Example: "The film is underexposed, so the image is very dark"
2. expose insufficiently; - Example: "The child was underexposed to language"
WordNet (r) 3.0 (2006):
underexpose
v 1: expose to too little light; "The film is underexposed, so
the image is very dark" [ant: overexpose]
2: expose insufficiently; "The child was underexposed to
language" [ant: overexpose]