I'm trying to find a word that is used to describe something that is generally accepted and well known, but is not necessarily written down or properly defined. The word is one I have used in the past but for some reason my neurons are not firing properly and I can not remember the word.
Synonyms include: pragmatic, standard, well known, experiential, practical, empirical, observed, accepted.
You might use it in a sentence such as
Most of the instructions are based on <blank> information by a variety of individuals.
or in a slightly different form
Their <blank> experiences in the field define the way the business operates.
I've added my own answer because I have since found the word I was looking for: Anecdotal. My synonyms above were slightly inaccurate, although the sentences, along with what I wanted to use the word for, still works as I intended it to based on the actual definition.[/edit]