Thought"less, adv. 1. Lacking thought; careless; inconsiderate; rash; as, a thoughtless person, or act.

2. Giddy; gay; dissipated. [R.] Johnson.

3. Deficient in reasoning power; stupid; dull.

Thoughtless as monarch oaks that shade the plain.

-- Thought"less*ly, adv. -- Thought"less*ness, n.

Thought"less, adv. 1. Lacking thought; careless; inconsiderate; rash; as, a thoughtless person, or act.

2. Giddy; gay; dissipated. [R.] Johnson.

3. Deficient in reasoning power; stupid; dull.

Thoughtless as monarch oaks that shade the plain.

-- Thought"less*ly, adv. -- Thought"less*ness, n.

• Marked by or showing lack of due thought or care; careless.
  
• Inconsiderate; inattentive.
       Example: A thoughtless remark.
  
• Lacking thought.
       Example: The debate turned into thoughtless bickering.