Translation guide
In Japanese, 'huge rock' is most naturally expressed with the word 岩 (iwa) modified by adjectives like 巨大な (kyodai na) or 大きな (ōkina). The choice depends on context, such as size, shape, and whether it's a natural formation or a boulder.
Describing a very large rock or boulder in general, often in nature.
The most direct and common way to say 'huge rock'. 巨大 (kyodai) means 'huge' or 'gigantic', and 岩 (iwa) means 'rock' or 'boulder'.
あの巨大な岩は何百万年も前からそこにある。
That huge rock has been there for millions of years.
A simpler, more everyday way to say 'big rock'. 大きな (ōkina) is a common adjective for 'big'. Slightly less emphatic than 巨大な.
庭に大きな岩があって、邪魔だ。
There's a big rock in the garden, and it's in the way.
A more technical or literary term for 'huge rock' or 'megalith'. Often used in geological or archaeological contexts.
この地域には古代の巨石が点在している。
Ancient megaliths are scattered throughout this region.
Referring to a huge rock as a prominent natural feature, like a cliff face or a massive outcrop.
Means 'rock wall' or 'cliff face'. Used for a huge, steep rock surface, often in mountains or climbing contexts.
その巨大な岩壁は登山家たちを魅了する。
That huge rock face fascinates climbers.
Literally 'giant rock', often used for a massive, impressive boulder or monolith in nature. Similar to 巨石 but more common in descriptive writing.
Describing a huge rock that is in the way, blocking a path, or situated somewhere specific.
A natural phrase meaning 'a big rock is blocking the road/path'. Useful for practical situations.
大きな岩が道をふさいでいて、通れなかった。
A huge rock was blocking the road, so we couldn't get through.
Means 'a huge rock fell'. Used in contexts like landslides or accidents.
山から巨大な岩が落ちてきて、危なかった。
A huge rock fell from the mountain; it was dangerous.
岩 (iwa) refers to large rocks or boulders, while 石 (ishi) is used for smaller stones or pebbles. For 'huge rock', always use 岩, not 石.
子供が石を投げた。
The child threw a stone.
巨大な岩は動かせない。
You can't move a huge rock.
大岩 (ōiwa) is a compound word meaning 'big rock' and is sometimes used in place names or as a proper noun. It's less common in everyday speech than 大きな岩, but you may encounter it in names like 大岩山 (Ōiwa-yama).
A huge rock towers over the coast.
Means 'monolith' or 'a single massive rock'. Emphasizes that it is one continuous piece of rock, not broken into parts.
この山は一枚岩でできている。
This mountain is made of a single huge rock.