Not attentive or heedless.

असावधान

English Usage: The driver was unmindful of the pedestrians crossing the street.

Hindi Usage: चालक सड़क पर क्रॉस कर रहे pedestrians के प्रति असावधान था।

The state of being unmindful; neglectfulness.

असावधानी

English Usage: His unmindful caused him to lose his job.

Hindi Usage: उसकी असावधानी के कारण उसे अपनी नौकरी खोनी पड़ी।

In a manner that shows a lack of attention.

ध्यान की कमी के साथ

English Usage: She spoke unmindfully, not realizing the impact of her words.

Hindi Usage: उसने ध्यान की कमी के साथ बोलते हुए अपने शब्दों के प्रभाव को नहीं समझा।