Adamantine and Hardline

Adamantine

Adamantine adjective - Sticking to an opinion, purpose, or course of action in spite of reason, arguments, or persuasion.

Hardline and adamantine are semantically related In some cases you can replace term "Hardline" with "Adamantine", this adjectives are similar.

Nearby Word: adamant

Hardline

Hardline adjective - Firm and uncompromising.

Adamantine and hardline are semantically related in stiff topic. Sometimes you can use "Adamantine" instead an adjective "Hardline".

Nearby Word: hardliner
Cite this Source
Hardline and Adamantine. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/adamantine/hardline
Adamantine & Hardline. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/adamantine/hardline>.
Hardline or Adamantine. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/adamantine/hardline.
Google Ngram Viewer shows how "adamantine" and "hardline" have occurred on timeline