ultrahard

Fetched 2026-10-26 (cache).

Synonyms: ultrasharp, ultramar, ultrarare

Antonyms: ultrasharp, ultramar, ultrarare

Related words from Datamuse; suggestions, not definitions.

Adjective

1. [[extremely|Extremely]] [[hard]]; of [[utmost]] [[hardness]].

Adjective

1. harder than [[diamond]], harder than 150[[GPa]] resistance

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.