thoughtless

Thoughtless is a related term of lackadaisical.

As adjectives the difference between thoughtless and lackadaisical

is that thoughtless is marked by or showing lack of due thought or care; careless while lackadaisical is showing no interest or enthusiasm.

Thoughtless is a related term of disorderly.

As adjectives the difference between thoughtless and disorderly

is that thoughtless is marked by or showing lack of due thought or care; careless while disorderly is not in order; marked by disorder or disarray.

Imbecile is a synonym of thoughtless.

As adjectives the difference between imbecile and thoughtless

is that imbecile is (dated) destitute of strength, whether of body or mind; feeble; impotent; especially, mentally weak while thoughtless is marked by or showing lack of due thought or care; careless.

As a noun imbecile

is (obsolete) a person with limited (l) (l) who can perform (l) and think only like a young child, in medical circles meaning a person who lacks the capacity to develop beyond the mental age of a normal five to seven-year-old child.

Thoughtless is a related term of regardless.

As adjectives the difference between thoughtless and regardless

is that thoughtless is marked by or showing lack of due thought or care; careless while regardless is having no regard; heedless; careless.

As an adverb regardless is

without attention to warnings or indications of bad consequences.

As a preposition regardless is

paying no attention to; regardless of.

Thoughtless is a related term of incautious.

As adjectives the difference between thoughtless and incautious

is that thoughtless is marked by or showing lack of due thought or care; careless while incautious is careless, reckless, not exercising proper caution.

Thoughtless is a related term of rash.

As an adjective thoughtless

is marked by or showing lack of due thought or care; careless.

As a proper noun rash is

.

Thoughtless is a related term of indiscreet.

As adjectives the difference between thoughtless and indiscreet

is that thoughtless is marked by or showing lack of due thought or care; careless while indiscreet is not discreet; wanting in discretion.

Foolish is a related term of thoughtless.

As adjectives the difference between foolish and thoughtless

is that foolish is lacking good sense or judgement; unwise while thoughtless is marked by or showing lack of due thought or care; careless.

Expressionless is a related term of thoughtless.

As adjectives the difference between expressionless and thoughtless

is that expressionless is without expression while thoughtless is marked by or showing lack of due thought or care; careless.

Thoughtless is a related term of sloppy.

As adjectives the difference between thoughtless and sloppy

is that thoughtless is marked by or showing lack of due thought or care; careless while sloppy is very wet; covered in or composed of slop.