Translation guide
The English word "ancient" can refer to very old things, historical periods, or even people in a humorous way. Japanese has different words depending on what you're describing and the nuance you want.
Describing something that has existed for a very long time, often with a sense of historical value.
The most common word for 'old' (opposite of new). Use for objects, buildings, etc. It doesn't necessarily imply thousands of years; context matters.
There are many ancient temples in this town.
Specifically means 'of ancient times' (historical period). Used for things from antiquity, like ancient civilizations.
I visited ancient ruins.
Refers to remote antiquity, primeval times. Often used in literary or scientific contexts.
An ancient forest stretches out.
Referring to a specific era in history, like ancient Greece or ancient times.
The standard term for 'ancient times' or 'antiquity'. Used as a noun or in compounds.
I'm studying ancient Greek philosophy.
Means 'from ancient times' or 'since antiquity'. Often used in set phrases.
A poetic or literary word for 'ancient times' or 'the past'. Evokes a nostalgic feeling.
Jokingly saying someone or something is very old, like 'ancient' in English slang.
古い (furui) is a general adjective for 'old' and can be used for anything from a few years to centuries. 古代の (kodai no) specifically refers to the historical period of antiquity (e.g., ancient Rome). Use 古い for everyday objects and 古代の for historical contexts.
When jokingly calling a person 'ancient', avoid 古代 (kodai) as it sounds like they are from a historical era. Use 大昔の人 (ōmukashi no hito) or 化石 (kaseki) instead.
This is an ancient manuscript.
My computer is ancient.
This festival has been held since ancient times.
いにしえの人々の知恵に学ぶ。
We learn from the wisdom of ancient people.