thoughtless

Blank is a synonym of thoughtless.

As a verb blank

is .

As an adjective thoughtless is

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

Undutiful is a related term of thoughtless.

As adjectives the difference between undutiful and thoughtless

is that undutiful is not dutiful while thoughtless is marked by or showing lack of due thought or care; careless.

As adjectives the difference between brainless and thoughtless

is that brainless is (lb) having no brain while thoughtless is marked by or showing lack of due thought or care; careless.

Thoughtless is a related term of relaxed.

As adjectives the difference between thoughtless and relaxed

is that thoughtless is marked by or showing lack of due thought or care; careless while relaxed is having an easy-going mood or temperament.

As a verb relaxed is

(relax).

Irresponsible is a related term of thoughtless.

As adjectives the difference between irresponsible and thoughtless

is that irresponsible is lacking a sense of responsibility; incapable of or not chargeable with responsibility; unable to respond to obligation while thoughtless is marked by or showing lack of due thought or care; careless.

As a noun irresponsible

is someone who is not responsible.

Uncaring is a related term of thoughtless.

As adjectives the difference between uncaring and thoughtless

is that uncaring is characterized by a lack of care; not caring while thoughtless is marked by or showing lack of due thought or care; careless.

As adjectives the difference between thoughtless and insensitive

is that thoughtless is marked by or showing lack of due thought or care; careless while insensitive is not expressing normal physical feeling.

Inexpressive is a related term of thoughtless.

As adjectives the difference between inexpressive and thoughtless

is that inexpressive is lacking expression or emotion while thoughtless is marked by or showing lack of due thought or care; careless.

As adjectives the difference between thoughtless and imprecise

is that thoughtless is marked by or showing lack of due thought or care; careless while imprecise is not precise or exact; containing some error or uncertainty.

Blithe is a synonym of thoughtless.

As adjectives the difference between blithe and thoughtless

is that blithe is (dated or literary) happy, cheerful while thoughtless is marked by or showing lack of due thought or care; careless.