Word: knucklehead
Part of speech: Noun
Syllables: knuck
le
head
Definition: An idiot; a stupid or inept person.
Morphemes:
Affix: knuckle
Language: en
PoS: Verb
Meaning: To bend the fingers.
Affix: head
Language: en
PoS: Noun
Meaning: Mental or emotional aptitude or skill.