Definition of insuperably in US English:

insuperably

adverb

  • See insuperable

    • ‘Cladding and glazing this complex shape was also something that would have been almost insuperably difficult before the arrival of the computer-generated special shape.’

Pronunciation

insuperably

/inˈso͞op(ə)rəblē//ɪnˈsup(ə)rəbli/