Meaning of 無沙汰 in Japanese

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Definition of 無沙汰

ぶさた(busata) 【無沙汰 ·不沙汰】

(n, vs) not writing or contacting for a while; neglecting to write (call, visit, etc.); failing to write (call, visit, etc.); long silence

ごぶさた(gobusata) 【ご無沙汰 ·御無沙汰 ·ご不沙汰 ·御不沙汰】

(n, vs) not writing or contacting for a while; neglecting (failing) to write (call, visit, etc.); long silence →Related words: 無沙汰
２年間のご無沙汰でした。
Two years have passed since I last met you.

てもちぶさた(temochibusata) 【手持ち無沙汰 ·手持無沙汰 ·手持ちぶさた】

(adj-na, n) being bored; being at a loose end
タバコでも吸っていないと手持ちぶさただ。
Sometimes I smoke just to give my hands something to do.

ご無沙汰ごぶさたをしてする、ごめんなさい。

I am sorry I did not write to you for such a long time.

ご無沙汰ごぶさたしましたする。

I haven't seen you for ages.

ご無沙汰ごぶさたはお互いおたがいさまです。

I am as much in the wrong as you are about not writing before this.

ご無沙汰ごぶさたしていますする。

It has been a long time since I wrote you last.

I have neglected you so long that I feel a bit shy in visiting you.