— thoughtlessly , adv. — thoughtlessness , n.
/thawt"lis/ , adj.
1. lacking in consideration for others; inconsiderate; tactless: a thoughtless remark.
2. characterized by or showing lack of thought: a shallow, thoughtless book.
3. not thinking enough; careless or heedless: thoughtless of his health.
4. devoid of or lacking capacity for thought.
[ 1585-95; THOUGHT 1 + -LESS ]
Syn. 1. negligent, neglectful. 3. inattentive, remiss.