heedlessness / negligence / unawareness
Feminine noun. Adjective: غَافِلٌ (heedless). Verb: غَفَلَ (to be heedless). Plural: غَافِلُونَ. The opposite of dhikr (remembrance).
Ghaflah is considered one of the greatest spiritual diseases - being oblivious to God, death, and the afterlife while absorbed in worldly distractions.