adv · 2 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:/dɪˈmɒnstrəbliː/
US:/diˈmɑnstrəbli/
Southern-England:Recorded audio is listed in the source snapshot.
CMU ARPABET:D IH0 M AA1 N S T R AH0 B L IY0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adv
Meaning 1
In such a manner that is capable of being demonstrated, shown, or proved (without doubt).
Definition source: English Wiktionary via Wiktextract
Examples
The country has become demonstrably less safe under his leadership.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
adverb
Meaning 2
in an obvious and provable manner
Definition source: Princeton WordNet 3.0
Examples
his documentary sources are demonstrably wrong
Meaning relationships
Synonyms: provably, incontrovertibly
Antonyms: none provided
History
Etymology
Etymology tree English demonstrable Proto-Indo-European *leyg-der. Proto-Germanic *līkąder. Proto-Germanic *-līkaz Proto-Germanic *-ê Proto-Germanic *-līkê Proto-West Germanic *-līkē Old English -līċe Middle English -ly English -ly English demonstrably From demonstrable + -ly. First attested in the early 17th century.
Across languages
Translations
6 source translations are retained for this English entry.
Danish:
bevislig
— in such a manner as to be capable of being demonstrated
Danish:
bevisligt
— in such a manner as to be capable of being demonstrated
Finnish:
osoitettavasti
— in such a manner as to be capable of being demonstrated
French:
démontrablement
— in such a manner as to be capable of being demonstrated
Polish:
wykazalnie
— in such a manner as to be capable of being demonstrated
Portuguese:
demonstravelmente
— in such a manner as to be capable of being demonstrated