Condescending

Definition:
A
condescending tone is one in which a haughty attitude is shown or implied, in
which the speaker looks down on the reader from a position of (real or
perceived) superiority.  It is very
similar to a contemptuous tone, with the main difference being that
condescension emphasizes the speaker’s superiority, whereas a contemptuous tone
focuses more on the lowliness of the subject discussed.
Ex:
An excuse for presenting a translation of this
curious tale, out of its very insular Latin into the modern tongue of the
United Kingdom, may be found in the glimpse that it affords of life in a dark
period of the history of Britain, not to mention the light that it throws on
the origin of some difficult place-names. Some may find the character and
adventures of its hero attractive in themselves.
--J.R.R. Tolkien – “Farmer
Giles of Ham”
Visual: