Free Thinker 

a) One who relies solely on themselves to make judgments based on their own perception of the world rather than blindly accepting what is told or implied by an outside influence, which is usually some kind of authoritarian figure.

Usually associated with non-conformists...

Very few people in this world have realized that they have access to and the ability to perform independent thought. While everyone has the ability, only the free thinker uses it, because he knows what he wants.

Free Thinker by Harvy Chesterfield(ak.a. Arvy) July 2, 2016

Rectal Thinker 

A complete dumbass with no common sense. No level of learning instruction or education will improve the intelligence of a rectal thinker.

My boss is a rectal thinker.

Rectal Thinker by Eaton Holgoode March 9, 2017

The Anti Thinker

One who doesn't think, an animator.
Shawn Langhans

Shawn Langhans pwns the world.

The Anti Thinker by Ethan July 13, 2004

deep thinker 

A person with profound thoughts; one who thinks beyond what is obvious.

She is such a deep thinker that's why she hardly has time for mundane concerns.

deep thinker by Sonnetshaven August 12, 2011

non-thinker 

a person whose decision making shows an complete absence of common sense and or intelligence, but shows an abundance of ignorance and stupidity

people who are unemployed but actively try to have children, thats an example non-thinker

non-thinker by nicole nice July 23, 2009

surface thinker 

used to define somebody who conforms and has no real thoughts with any depth

Ashley is SUCH a surface thinker!

surface thinker by Mick Jagger Fan March 4, 2015

Logical thinker 

Someone who observes a situation and resolves/tries to resolve it in a reasonable way.

Synonyms: critical thinker and intellectual

Antonyms: conservative and liberal

Mark: “Whoa! She’s answered that question in the utmost rational way!”

Henry: “Well, yeah dude. She’s what we call a logical thinker!”

Logical thinker by BowieFan1976 March 22, 2022