Word: underweight
Part of speech: Adjective
Syllables: un
der
weight
Definition: Of an inappropriately or unusually low weight.
Morphemes:
Affix: under-
Language: en
PoS: Prefix
Meaning: Under (in any sense): insufficient, insufficiently, below what is correct; subordinate to; beneath or behind.
Affix: weight
Language: en
PoS: Verb
Meaning: To add weight to something; to make something heavier.