intj · noun · 5 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.
hādā
/ˈheɪdeɪ/
US:Recorded audio is listed in the source snapshot.
rhymes with -eɪdeɪ
CMU ARPABET:HH EY1 D EY2
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
intj
Meaning 1
A lively greeting.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
intj
Meaning 2
An expression of frolic and exultation, and sometimes of wonder.
Definition source: English Wiktionary via Wiktextract
Usage: obsolete
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A period of success, popularity, or power; prime.
Definition source: English Wiktionary via Wiktextract
Examples
The early twentieth century was the heyday of the steam locomotive.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
An exultation of the spirits; gaiety; frolic.
Definition source: English Wiktionary via Wiktextract
Usage: archaic
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 5
the period of greatest prosperity or productivity
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Broader terms: time period, period of time, period
Narrower terms: golden age
History
Etymology
Late 16th century, from earlier heyda (1520s), as exclamation – compare hey, hei. Sense “period of success, vigor” is a respelling as heyday based on unrelated day (as “period of time”) – compare day in the sun.
Across languages
Translations
38 source translations are retained for this English entry.
Bulgarian:
разцвет
(razcvet)
— a period of success, popularity or power
Bulgarian:
апогей
(apogej)
— a period of success, popularity or power
Czech:
rozkvět
— a period of success, popularity or power
Czech:
vrchol
— a period of success, popularity or power
Czech:
rozmach
— a period of success, popularity or power
Danish:
blomstringstid
— a period of success, popularity or power
Danish:
storhedstid
— a period of success, popularity or power
Danish:
velmagtsdage
— a period of success, popularity or power
Dutch:
hoogtijdag
— a period of success, popularity or power
Dutch:
bloeitijd
— a period of success, popularity or power
Esperanto:
zenito
— a period of success, popularity or power
Finnish:
kukoistuskausi
— a period of success, popularity or power
French:
âge d’or
— a period of success, popularity or power
Galician:
fastixio
— a period of success, popularity or power
Galician:
cume
— a period of success, popularity or power
Galician:
auxe
— a period of success, popularity or power
German:
Blütezeit
— a period of success, popularity or power
Hungarian:
fénykor
— a period of success, popularity or power
Italian:
auge
— a period of success, popularity or power
Japanese:
全盛期
(zenseiki)
— a period of success, popularity or power
Korean:
전성기
(jeonseonggi)
— a period of success, popularity or power
Manx:
ard-laa
— a period of success, popularity or power
Māori:
poutūmārōtanga
— a period of success, popularity or power
Norwegian:
glansperiode
— a period of success, popularity or power
Polish:
szczyt
— a period of success, popularity or power
Polish:
pełnia
— a period of success, popularity or power
Polish:
rozkwit
— a period of success, popularity or power
Portuguese:
auge
— a period of success, popularity or power
Russian:
расцве́т
(rascvét)
— a period of success, popularity or power
Russian:
зени́т
(zenít)
— a period of success, popularity or power
Russian:
лу́чшая пора́
(lúčšaja porá)
— a period of success, popularity or power
Serbo-Croatian:
про̏цва̄т
— a period of success, popularity or power
Serbo-Croatian:
зла́тнo до̑ба
— a period of success, popularity or power
Serbo-Croatian:
prȍcvāt
— a period of success, popularity or power
Serbo-Croatian:
zlátno dȏba
— a period of success, popularity or power
Spanish:
auge
— a period of success, popularity or power
Swedish:
storhetstid
— a period of success, popularity or power
Ukrainian:
ро́зквіт
(rózkvit)
— a period of success, popularity or power