Word: underbreath
Part of speech: Adjective
Syllables: un
der
breath
Definition: Vocalized under one's breath.
Morphemes:
Affix: under-
Language: en
PoS: Prefix
Meaning: Under (in any sense): insufficient, insufficiently, below what is correct; subordinate to; beneath or behind.
Affix: breath
Language: en
PoS: Verb
Meaning: misspelling of breathe.