Adjective

common-sense (comparative more common-sense, superlative most common-sense)

Positive common-sense

Comparative more common-sense

Superlative most common-sense

1. common sense (in attributive use)

Common sense (or, when used attributively as an adjective, commonsense, common-sense, or commonsensical), based on a strict construction of the term, consists of what people in common would agree on: that which they "sense" as their common natural understanding. Some people (such as the authors of Merriam-Webster Online) use the phrase to refer to beliefs or propositions that — in their opinion — most people would consider prudent and of sound judgment, without reliance on esoteric knowledge or study or research, but based upon what they see as knowledge held by people "in common". Thus "common sense" (in this view) equates to the knowledge and experience which most people allegedly have, or which the person using the term believes that they do or should have.

Whatever definition one uses, identifying particular items of knowledge as "common sense" becomes difficult. Philosophers may choose to avoid using the phrase when using precise language. But common sense remains a perennial topic in epistemology and many philosophers make wide use of the concept or at least refer to it. Some related concepts include intuitions, pre-theoretic belief, ordinary language, the frame problem, foundational beliefs, good sense, endoxa, and axioms.

Common-sense ideas tend to relate to events within human experience (such as good will), and thus appear commensurate with human scale. Humans lack any commonsense intuition of, for example, the behavior of the universe at subatomic distances [see quantum mechanics], or of speeds approaching that of light [see special relativity]. Often ideas that may be considered to be true by common sense are in fact false.

This article refers to a kind of understanding.

For the political tract Common Sense, see Thomas Paine.

For the rapper formerly known as "Common Sense", see Common (rapper).

Common sense, roughly speaking, is what people in common would agree: that which they "sense" in common as their shared natural understanding. Some use the phrase to refer to beliefs or propositions that in their opinion they consider would in most people's experience be prudent and of sound judgment, without dependence upon esoteric knowledge or study or research, but based upon what is believed to be knowledge held by people "in common".

Sourced

• Since the world is what it is, it is clear that valid reasoning from sound principles cannot lead to error; but a principle may be so nearly true as to deserve theoretical respect, and yet may lead to practical consequences which we feel to be absurd. There is therefore a justification for common sense in philosophy, but only as showing that our theoretical principles cannot be quite correct so long as their consequences are condemned by an appeal to common sense which we feel to be irresistible. The theorist may retort that common sense is no more infallible than logic. But this retort, though made by Berkeley and Hume, would have been wholly foreign to Locke's intellectual temper.
  • Bertrand Russell, A History of Western Philosophy (1945)

• Nothing astonishes men so much as common sense and plain dealing.
  • Ralph Waldo Emerson, Art (1841)

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Sun Mar 21 10:12:03 2010