What's a word for dismissing something quickly, perhaps without giving it proper consideration?

Answer 1

how'bout perfunctory?

Answer 2

To be dismissive of something is exactly what you said.

Other possibilities:
|--: To minimize something (e.g., minimize difficulties).
|--: To shrug something off (e.g., shrug off criticism).
|--: To pooh-pooh something.
|--: To give glancing attention to something.
|--: To pay something no heed; to be heedless of it.
|--: To pass something over, or to pass over lightly.

And if all the above are too prosaic for your taste:
|--: Floccinaucinihilipilification is the act of considering something worthless or nearly so.

Answer 3

You could use the word DISREGARD - according to my dictionary it is defined as
"ignore, treat as unimporatant, lack of attention"
(Oxford Dictionary)

Answer 4

I believe the word you are looking for is 'cursory.' Look it up in the dictionary.

Answer 5

I like 'deflect' although strictly speaking it ain't that sort of word.

Answer 6

impulsive?
.