na-adjective, noun
Describes speech, behavior, or content that is sexually crude, low-class, or lacking refinement. Often used for jokes, words, or atmospheres.
彼の猥雑な冗談に、みんな引いていた。
Everyone was put off by his vulgar jokes.
その小説には猥雑な描写が多い。
That novel contains many indecent descriptions.
na-adjective, noun
Used for physical spaces or environments that are jumbled, cluttered, or lacking order. Less common than the vulgar sense.
猥雑な市場の路地を歩くのは楽しい。
It's fun to walk through the chaotic alleys of the marketplace.
Compound of 猥 (vulgar, indecent) and 雑 (miscellaneous, mixed). The exact historical derivation is uncertain, but the combination suggests a mixture of low or crude elements, leading to the senses of vulgarity and disorder.