adj ·4 syllables ·Uncommon ·Advanced level

Definitions

Adjective

1. 1
   Not able to be shaken; firm, solid
2. 2
   resolute, unfaltering, unwavering
3. 3
   Having no errors or loopholes; unassailable figuratively

Adjective

1. 1
   without flaws or loopholes wordnet
2. 2
   marked by firm determination or resolution; not shakable wordnet

Synonyms

All synonyms

abidingbalancedbulletproofcast ironconstantcool

Antonyms

All antonyms

shakable

Example

More examples

"Mary was irritated by Tom's unshakable calmness."

Etymology

From un- + shake + -able.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.