久しぶり with negatives?

I can't recall if i have ever seen 久しぶり being used while the action referred to is still in the state of not being done. To put it simple: whenever i see 久しぶり it becomes a reference point for any future 久しぶり, since the action or condition are manifesting at the moment: snow falls in Tokyo, air is clean in Beijing, someone meets an old friend, i get drunk etc.

But what if i want to say "it's been a long time, and it still isn't"? Like "I haven't had a haircut for a long time (and not having one any time soon)". Do i have to resort to 長い間 constructions, or can i still use 久しぶり? Does 酒を飲むのは久しぶりです automatically imply that i'm about to indulge or just had some?

Are you forgetting しばらく

From my (limited) experience, I hear 久しぶり used in cases where something hasn't been done (like your drinking example) regardless of whether the action is imminent (e.g. 彼？会うの久しぶり…)
Another being きり＋[negative] to indicate the starting point of the period where the action hasn't been done.
As Mike said, there's also しばらく.

I have heard so many しばらくお待ちください so far, that it deeply rooted in my mind as しばらく＝少々. Thank you for reminding me that it can also mean a while and a long time.

AmerikaJin5 said:

きり＋[negative]

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I'm not sure what you're talking about. Could you please give some example?

Lomaster said:

I can't recall if i have ever seen 久しぶり being used while the action referred to is still in the state of not being done. To put it simple: whenever i see 久しぶり it becomes a reference point for any future 久しぶり, since the action or condition are manifesting at the moment: snow falls in Tokyo, air is clean in Beijing, someone meets an old friend, i get drunk etc.

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That meaning of 久しぶり is from ぶり, so 久しく, i.e the adverbial form of 久しい, has a similar meaning to しばらく.
e.g.
久しく髪を切っていない。
(cf. ひと月ぶりに雨が降った。)

Lomaster said:

But what if i want to say "it's been a long time, and it still isn't"? Like "I haven't had a haircut for a long time (and not having one any time soon)".

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You can also use the construction （～から）ずっと…ない.
e.g.
ずっと髪を切っていない。
先月からずっと雨が降っていない。
テレビが壊れてからずっとテレビを見ていない。

Lomaster said:

Does 酒を飲むのは久しぶりです automatically imply that i'm about to indulge or just had some?

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Yes.

Lomaster said:

I'm not sure what you're talking about. Could you please give some example?

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去年会った（っ）きり、彼とは会っていない。
犬が家を出て行った（っ）きり戻ってこない。

@Toritoribe It's reassuring to know that there are so many options to convey that meaning. Thank you for detailed explanation and examples!
@Mike Cash , @AmerikaJin5 , appreciate your help too!