Blatantly is used to add emphasis when you are describing states or situations which you think are bad.
例句
It became blatantly obvious to me that the band wasn't going to last...我覺(jué)得很明顯該樂(lè)隊(duì)長(zhǎng)久不了。For years, blatantly false assertions have gone unchallenged...多年來(lái)，一些明顯錯(cuò)誤的斷言都沒(méi)有受到質(zhì)疑。
英漢詞典釋義
adv.
公然地
blatantly contravening the rules of civilized warfare公然違反文明戰(zhàn)爭(zhēng)的原則Safety guidelines had been blatantly ignored.安全規(guī)章被公然置之不顧。