1

It's not about indifference or apathy to the world but about people who just do what they are told, never question why they should do that.

  • Please show us how you'd like to use the word, with a sample sentence. Hopefully then your question would be reopened. – aparente001 Feb 23 '17 at 6:23
3

You've nearly answered your own question, as the word unquestioning conveys exactly what you describe:

Accepting something without dissent or doubt.

3

docile

adjective: docile:

ready to accept control or instruction; submissive.

"a cheap and docile workforce"

synonyms: compliant, obedient, pliant, dutiful, willing, passive, submissive, deferential, tame, meek, mild, lamblike, unassertive, unresisting, yielding, cooperative, amenable, accommodating, biddable, persuadable, ductile, manageable, controllable, tractable, malleable, manipulable, easily manipulated, easily handled, like putty in one's hands;
(from Google)

2

That type of person can be described as a Yes-man:

Yes-man

  1. A person who agrees with everything that is said.

  2. One who endorses or supports, without criticism, every opinion or proposal of an associate or superior.

1

People who do what they're told without questioning why are sometimes referred to as Sheep: an easily led person.

0

That person is Obedient

Obedient - Dutifully complying with the commands, orders, or instructions of one in authority. http://www.thefreedictionary.com/obedient

0

If you want to emphasize the "do what they're told" aspect, you could say "subservient"

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