hitherto
/ˌhɪðəˈtuː/ (bre, ipa) · /ˌhɪðərˈtuː/ (ame, ipa) · /ˈhi-t͟hər-ˌtü ˌhi-t͟hər-ˈtü/ (ame, mw)
hitherto — adverb
1. continuing from earlier times to the present, or to another time already mention
continuing from earlier times to the present, or to another time already mentioned.
Hitherto, the village has had no doctor of its own.
sentence adverb for a condition continuing up to now
Adaeze had hitherto kept the recipe secret from her cousins.
mid-position after had in a formal style
The storm exposed a hitherto hidden crack in the roof.
The files contained hitherto unseen photos from the old theater.
The company has hitherto sold its toys only online.
- so far
more conversational and usually tied to the present, not to a past reference point
- until then
used when the end point is clearly in the past
- previously
less formal and often just points back to an earlier time rather than stressing a period up to a limit
- afterward
moves the time reference to what comes later
- from now on
starts from the present and points forward
文法句型
hitherto + clause
have/had + hitherto + past participle
hitherto + past participle + noun
用法筆記
Mostly used in formal writing and often placed before a clause or before a past participle such as unknown, hidden, or unseen. It can point either to the present moment or to an earlier time already established in the sentence.