Synonyms of unshakable

unshakable

adjective

ˌən-ˈshā-kə-bəl 

as in calm

not easily panicked or upset

we need the kind of leader who will be unshakable in a national crisis

Synonyms & Similar Words

• calm
• serene
• nonchalant
• unflappable
• imperturbable
• composed
• nerveless
• unshaken
• cool
• collected
• undisturbed
• unruffled
• tranquil
• steely
• untroubled
• icy
• unperturbed
• placid
• unworried
• coolheaded
• self-possessed
• self-composed
• self-collected

Antonyms & Near Antonyms

• panicky
• shakable
• shaky
• troubled
• nervous
• anxious
• perturbable
• uneasy
• upset
• tense
• worried
• uptight
• jittery
• jumpy
• perturbed
• edgy
• nervy
• dithery
• het up
• aflutter
• hung up

Example Sentences

Recent Examples of unshakable

Cantor and his family, who originally emigrated to Sacramento the year before, settled in the San Gabriel Valley after the World Cup, setting him on his unshakable path. — Josh Gross, Daily News, 11 June 2026

But mostly there was an unshakable focus on the next task at hand. — Kyle Wagner, New York Daily News, 11 June 2026

Once that nucleus is stable, the processes are set and the culture is unshakable; the transition to a more remote or hybrid model should become much more viable. — Vikram Joshi, Forbes.com, 1 June 2026

Zulfi is an iconoclast and a hustler, a man who dreams of opening a Muslims-only version of Uber and who, even in the face of Shah’s elitism and English society’s broader wariness, holds onto an unshakable optimism. — Joe Reid, Vulture, 29 May 2026