very hard native crystalline carbon valued as a gem
Adjective:
impervious to pleas, persuasion, requests, reason;
\\\"he is adamant in his refusal to change his mind\\\"
\\\"Cynthia was inexorable; she would have none of him\\\"
\\\"an intransigent conservative opposed to every liberal tendency\\\"
造句
用作形容詞(adj.)
She was quite adamant that she would not come. 她堅決不來。
On this point I am adamant. 在這一點上我是堅定不移的。
She was adamant in refusing to comply with his wishes. 她固執地拒絕按他的意愿辦。