unshakable

Unshakable is an adjective used to describe a quality of firmness, stability, or resilience that resists change, doubt, or external pressure. In everyday language it denotes a person, belief, or structure that remains steadfast despite challenges. The term derives from the verb “shake,” with the prefix “un‑” indicating the negation of being shaken.

In psychology, unshakable confidence refers to a self‑assurance that persists across varying circumstances and is often linked to high self‑efficacy and emotional regulation. Researchers distinguish it from overconfidence, emphasizing that an unshakable attitude is typically supported by evidence, realistic appraisal, and adaptive coping strategies. In spiritual and philosophical contexts, unshakable faith describes a belief system that remains intact regardless of contradictory experiences, and it is frequently cited in religious texts and meditation literature.

The word appears in various cultural works. “Unshakable” is the title of songs by several artists, notably a 2018 track by the contemporary Christian group Bethel Music, which explores themes of trust in divine constancy. It also titles a 2015 memoir by a former athlete describing personal perseverance. In legal terminology, an unshakable precedent would be a judicial decision that has not been overturned or questioned in subsequent rulings.

Synonyms include steadfast, resolute, immovable, and indomitable, while antonyms comprise wavering, doubtful, and fragile. The adjective is used across disciplines to convey an enduring strength that does not succumb to external forces.