adj · 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
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
UK:/ˈθʌn.də.ɹəs/
Canada, US:/ˈθʌn.dɚ.əs/
Australian:/ˈθan.də.ɹəs/
Australia:Recorded audio is listed in the source snapshot.
CMU ARPABET:TH AH1 N D ER0 AH0 S
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Very loud; that sounds like thunder; thundersome. Also in metaphorical expressions, signifying fury.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
adjective satellite
Meaning 2
extremely ominous
Definition source: Princeton WordNet 3.0
Examples
world events of thunderous import
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
adjective satellite
Meaning 3
loud enough to cause (temporary) hearing loss
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: deafening, earsplitting, thundery
Antonyms: none provided
History
Etymology
Etymology tree English thunder Proto-Indo-European *h3ed- Proto-Indo-European *-os Proto-Indo-European *h3édosder.? Proto-Italic *-ŏ̄dsos? Old Latin -ōssus Latin -ōsus Old French -usbor. Middle English -ous English -ous English thunderous From thunder + -ous.
Across languages
Translations
20 source translations are retained for this English entry.
Bulgarian:
гърмящ
(gǎrmjašt)
— very loud; suggestive of thunder
Bulgarian:
оглушителен
(oglušitelen)
— very loud; suggestive of thunder
Bulgarian:
буреносен
(burenosen)
— very loud; suggestive of thunder
Esperanto:
tondra
— very loud; suggestive of thunder
Finnish:
jyrisevä
— very loud; suggestive of thunder
French:
tonitruant
— very loud; suggestive of thunder
German:
donnernd
— very loud; suggestive of thunder
Italian:
tonitruante
— very loud; suggestive of thunder
Italian:
tonante
— very loud; suggestive of thunder
Korean:
우레 같은
(ure gateun)
— very loud; suggestive of thunder
Latin:
tonitrālis
— very loud; suggestive of thunder
Macedonian:
громогласен
(gromoglasen)
— very loud; suggestive of thunder
Russian:
громовой
(gromovoj)
— very loud; suggestive of thunder
Russian:
оглушительный
(oglušitelʹnyj)
— very loud; suggestive of thunder
Russian:
грозовой
(grozovoj)
— very loud; suggestive of thunder
Russian:
предвещающий грозу
(predveščajuščij grozu)
— very loud; suggestive of thunder
Spanish:
atronador
— very loud; suggestive of thunder
Spanish:
tonante
— very loud; suggestive of thunder
Spanish:
tronitoso
— very loud; suggestive of thunder
Spanish:
estruendoso
— very loud; suggestive of thunder