How to say "rugged" in Japanese

Choosing the right word
  • 険しいけわしいJLPT N2approx.Common
    i-adjectiveCovers 'rugged' of landscape: steep, precipitous terrain that is rough and hard to climb or cross. Think of rugged mountains, cliffs, or coastline; it stresses the forbidding, difficult nature of the ground.
    彼かれらは険けわしい北面ほくめんを登のぼった。↗
    They climbed the rugged north face.
  • 強いつよいJLPT N5approx.Common
    i-adjectiveCovers 'rugged' only as physically strong or tough — a brawny, robust person or constitution. Its core meaning is simply 'strong', so it is seldom the word you want for 'rugged' itself.
    象ぞうというものは強つよい動物どうぶつである。↗
    An elephant is a strong animal.

Use 「険しい」 for rugged terrain — steep, rough country that is hard to climb or cross — and 「強い」 when 'rugged' means physically strong or tough, though its core meaning is simply 'strong'.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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