This is the 17054th most frequent Turkish word.
çekmediği
"Çekmediği" means "that which he/she/it did not endure or pull."
In this sentence, 'çekmediği' is used to describe pain ('acı') that has not been endured or suffered.
Hayatında çekmediği acı kalmadı.
There is no pain left in life that they haven't endured.
Here, 'çekmediği' refers to not taking ('çekmek') a photo, emphasizing the act not performed.
Fotoğraf çekmediği için anıyı yakalayamadı.
They couldn't capture the memory because they didn't take a photo.
In this context, 'çekmediği' is used to represent not attracting ('çekmek') attention.