modern, contemporary

astronomical (relating to astronomy) / astronomical (vast)

criminal

fantastic, illusory, imaginary

threatening; menacing

automatic

idyllic

(mathematics) geometrical

"Historical kana usage", a prescriptive method of using kana to write Japanese. Devised in the Edo period by Keichū (契沖) and taught in schools until 1946, it aims to be etymologically faithful and reflects earlier stages of the language (Heian period and earlier).

humanitarian