ダサい
"uncool, tacky": judges taste, which can't be argued with
Several etymologies are given; the most popular is 「だ(=田舎)+さい」 ("country" + "-sai"), and another derives it from 「ダサイタマ」 (a jab at Saitama). It was young people's slang in the late 1970s and is now completely standard.
⚠ Its sting is that it judges not ability or right and wrong but "taste": once you are called ダサい, there is no arguing back.
Opposites: イケてる (stylish), おしゃれ (learned in Episode 7), かっこいい (cool).
The absurdity of the scene is in the proportion: they have just nearly become poisoners, just met a third person who has relived life, and are about to stop a crash involving 180 people, and what they care about is that his self-description sounds a bit tacky.









