primordial, outlandish caveat(경고, 주의해야 할 사항)
existing at or since the beginning of the world or the universe: 우주 생성 시점의The planet Jupiter contains large amounts of the primordial gas and dust out of which the solar system was formed basic and connected with an early stage of development
---------------------------------------------------------------------------------------- strange and unusual and difficult to accept or like:an outlandish hairstyle/outfit
strange and unusual:She liked to dress in outlandish clothes.
==> outlandish: 용납하기 힘들게 이상한, 기이한
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a warning to consider something before taking any more action, or a statement that limits a more general statement:
He agreed to the interview, with the caveat that he could approve the final article.
One caveat: Know when passengers must be back on board the plane.