The word "سنجیدگی" (Sanjidgi) in Urdu refers to "seriousness" or "sincerity." It is used to describe a state of being serious, earnest, or devoted to something. Sanjidgi implies a genuine and dedicated attitude towards a particular task, commitment, or relationship. It can also indicate a deep sense of seriousness and commitment in one's approach to life, work, or responsibilities. In the context of the poem you provided, "پہلے مشہور تھی آپنی سنجیدگی" suggests that the speaker's seriousness or sincerity had been well-known or prominent before a change occurred.
