• adj. 固執的，堅強的；堅定不移的；堅硬無比的
• n. 堅硬的東西；堅石

前綴a-, 無，不。詞根dam, 同tame,馴服。無法馴服的，堅定的。diamond,鉆石，詞源同。

adamant

adamant: [14] In Greek, adamas meant ‘unbreakable, invincible’. It was formed from the verb daman ‘subdue, break down’ (which came from the same source as English tame) plus the negative prefix a-. It developed a noun usage as a ‘hard substance’, specifically ‘diamond’ or ‘very hard metal’, and this passed into Latin as adamāns, or, in its stem form, adamant-. Hence Old French adamaunt, and eventually English adamant.
=> diamond, tame

adamant (adj.)

late 14c., "hard, unbreakable," from adamant (n.). Figurative sense of "unshakeable" first recorded 1670s. Related: Adamantly; adamance.

adamant (n.)

mid-14c., from Old French adamant and directly from Latin adamantem (nominative adamas) "adamant, hardest iron, steel," also figuratively, of character, from Greek adamas (genitive adamantos) "unbreakable, inflexible" metaphoric of anything unalterable, also the name of a hypothetical hardest material, perhaps literally "invincible," from a- "not" + daman "to conquer, to tame" (see tame (adj.)), or else a word of foreign origin altered to conform to Greek.

Applied in antiquity to a metal resembling gold (Plato), white sapphire, magnet (by Ovid, perhaps via confusion with Latin adamare "to love passionately"), steel, emery stone, and especially diamond (see diamond). "The name has thus always been of indefinite and fluctuating sense" [Century Dictionary]. The word was in Old English as aeamans "a very hard stone."

1. The Americans are adamant that they will not budge on this point.

美國人非常強硬，他們在這一點上是不會妥協的。

來自柯林斯例句

2. The prime minister is adamant that he will not resign.

首相堅決不辭職。

來自柯林斯例句

3. Pearce remained adamant, saying "I didn't touch him"

皮爾斯仍舊堅定不移地說：“我沒有碰過他。”

來自柯林斯例句

4. Sue was adamant about that job in Australia.

對澳大利亞的那份工作，休的態度很堅決。

來自柯林斯例句

5. Eva was adamant that she would not come.

伊娃堅決不來。

來自《權威詞典》