Word: speedful
Part of speech: Adjective
Syllables: speed
ful
Definition: Effectual; efficient.
Morphemes:
Affix: speed
Language: en
PoS: Verb
Meaning: To be expedient.
Affix: -ful
Language: en
PoS: Suffix
Meaning: Used to form adjectives from nouns. Full of, tending to, or thoroughly possessing the quality expressed by the noun.