Word: underdo
Part of speech: Verb
Syllables: un
der
do
Definition: To act below one's abilities; do less than one can.
Morphemes:
Affix: under-
Language: en
PoS: Prefix
Meaning: Under (in any sense): insufficient, insufficiently, below what is correct; subordinate to; beneath or behind.
Affix: do
Language: en
PoS: Verb
Meaning: To act or behave in a certain manner; to conduct oneself.