Insuperable

//ɪnˈsup(ə)ɹəb(ə)l// adj

adj ·Uncommon ·Advanced level

Definitions

Adjective
  1. 1
    Impossible to achieve or overcome or be negotiated.

    "Regular services for passengers and goods were maintained for almost 50 years, but the speed limit of 16 m.p.h., imposed by the Board of Trade, proved an insuperable handicap after the introduction of competitive motor bus services."

  2. 2
    Overwhelming or insurmountable.

    "For the first time I steadily reviewed the obstacles—and to consider them was at once to see they were insuperable."

Adjective
  1. 1
    impossible to surmount wordnet
  2. 2
    incapable of being surmounted or excelled wordnet

Synonyms

All synonyms
unconquerableadamantinebeyond oneimpassableimpenetrableimpracticable

Example

More examples

"It seemed like an insuperable challenge, but with determination, Tom overcame it."

Etymology

From Latin insuperabilis.

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