adv · 3 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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UK, US:/ˈsaʊnd.lɪ/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:S AW1 N D L IY0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adv
Meaning 1
In a thorough manner; in manner free of defect or deficiency.
Definition source: English Wiktionary via Wiktextract
Examples
He was soundly thrashed by the semi-professional boxer.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
adverb
Meaning 2
completely and absolutely (`good' is sometimes used informally for `thoroughly')
Definition source: Princeton WordNet 3.0
Examples
he was soundly defeated
we beat him good
Meaning relationships
Synonyms: thoroughly, good
Antonyms: none provided
3
adverb
Meaning 3
deeply or completely
Definition source: Princeton WordNet 3.0
Examples
slept soundly through the storm
the baby is sleeping soundly
Meaning relationships
Synonyms: none provided
Antonyms: none provided
History
Etymology
From Middle English soundly, soundely, from Old English ġesundlīċe (“safely, prosperously, gladly”), equivalent to sound + -ly. Originally meaning "safely", the present sense came in the 16th century.
Across languages
Translations
17 source translations are retained for this English entry.
Armenian:
հիմնովին
(himnovin)
— in a thorough manner
Armenian:
միանգամայն
(miangamayn)
— in a thorough manner
Armenian:
լիովին
(liovin)
— in a thorough manner
Dutch:
grondig
— in a thorough manner
Finnish:
perusteellisesti
— in a thorough manner
Finnish:
kunnolla
— in a thorough manner
French:
fortement
— in a thorough manner
French:
solidement
— in a thorough manner
German:
gründlich
— in a thorough manner
German:
ordentlich
— in a thorough manner
Greek:
γερά
(gerá)
— in a thorough manner
Norwegian Bokmål:
grundig
— in a thorough manner
Norwegian Nynorsk:
grundig
— in a thorough manner
Russian:
обоснованно
(obosnovanno)
— in a thorough manner