pedantic

=Pedantic=

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The term is typically used in a negative connotation, indicating someone overly concerned with minutiae and detail and whose tone is perceived as condescending. When it was first used by Shakespeare in Love's Labour's Lost (1588), it simply meant "teacher." Shortly afterward, it began to be used negatively. Thomas Nashe wrote in Have with you to Saffron-walden (1596), page 43: "O, tis a precious apothegmaticall [terse] Pedant, who will finde matter inough to dilate a whole daye of the first inuention [invention] of Fy, fa, fum"

http://en.wikipedia.org/wiki/Pedantic

Synonyms: bookish, precise Antonyms: imprecise, informal