relating to, or characteristic of Dickens's Mr. Podsnap; complacent, self-satisfied, blinkered, narrow-minded ...1866
from the name of John Podsnap (a character in Charles Dickens' Our Mutual Friend (1865), known for his complacency and refusal to face up to unpleasant facts) + -ian
FIRST DOCUMENTED USE
1866 - see EXAMPLE below
"...With Podsnappian dislike of improprieties, they fear lest it should "bring a blush to the cheek of a young person," and hence demand that the very existence of this class of crimes should be ignored in fiction as well as in every-day life..."
The Galaxy. An Illustrated Magazine of Entertaining Reading. September 1, 1866, to December 15, 1866
The Seventh Commandment in Modern Fiction - W.L. Alden