プログレッシブ和英中辞典(第4版)の解説
えがたい【得難い】
〔手に入れにくい〕hard [difficult] to get [obtain]；〔まれな〕rare；〔貴重な〕precious, priceless
この種の本はなかなか得難い
It's very difficult to get (hold of) this sort of book.
ジョンは得難い友だ
A friend like John is hard to come by.
得難い機会だった
It was a golden [rare] opportunity.
得難い忠告
priceless [valuable] advice
まことに得難い経験であった
It was a very valuable experience.