Word: soundlessly
Part of speech: Adverb
Syllables: sound
less
ly
Definition: In a manner that makes no noise.
Morphemes:
Affix: sound
Language: en
PoS: Adverb
Meaning: Soundly; completely and absolutely (`good' is sometimes used informally for `thoroughly')
Affix: -less
Language: en
PoS: Suffix
Meaning: Lacking (something); without (something). Added usually to a noun to form an adjective signifying a lack of that noun.
Affix: -ly
Language: en
PoS: Suffix
Meaning: Used to form adverbs from adjectives.