thoughtless

Definitions

Lacking consideration and consideration for others; inconsiderate.

Done or acting without proper thought or care; heedless.

Examples

It was very thoughtless of him to forget our anniversary again.

Her thoughtless comment about his appearance hurt his feelings deeply.

Leaving the gate open was a thoughtless mistake that allowed the dog to escape.

Synonyms

inconsiderate careless heedless negligent insensitive unmindful imprudent

Antonyms

thoughtful considerate mindful attentive cautious kind prudent