адамант - SERP Analysis

https://ru.wikipedia.org/wiki/%D0%90%D0%B4%D0%B0%D0%BC%D0%B0%D0%BD%D1%82_(%D0%B7%D0%BD%D0%B0%D1%87%D0%B5%D0%BD%D0%B8%D1%8F)

https://en.wikipedia.org/wiki/Adamant

https://www.merriam-webster.com/dictionary/adamant

https://adamant.im/ru/

https://dictionary.cambridge.org/ru/%D1%81%D0%BB%D0%BE%D0%B2%D0%B0%D1%80%D1%8C/%D0%B0%D0%BD%D0%B3%D0%BB%D0%B8%D0%B9%D1%81%D0%BA%D0%B8%D0%B9/adamant

https://www.adamant.ru/

https://www.dictionary.com/browse/adamant

https://ru.wiktionary.org/wiki/adamant

https://www.vocabulary.com/dictionary/adamant