How to say "Firm" in Japanese

When translating "firm" into Japanese, you must choose carefully between 揺るぎない and 強硬な. In Japanese, 揺るぎない (ゆるぎない (yuruginai)) is typically associated with "firm, steadfast, unwavering, immovable" (Syllabus Level: N2) and represents Describes something that is very stable and not easily changed or swayed, often used for beliefs, convictions, or positions. It's an adjective. On the other hand, 強硬な (きょうこうな (kyōkōna)) maps to "firm, resolute, unyielding, hardline" (Syllabus Level: N2) and represents Describes a stance, attitude, or action that is very strong, uncompromising, and determined, especially in negotiations or conflicts. Often used in political or diplomatic contexts.. A literal translation of "firm" can often sound unnatural to native Japanese speakers if mixed up!