different between undefeatableness vs undefeatable

English

Etymology

undefeatable +? -ness

Noun

undefeatableness (uncountable)

1. (rare) The quality of being undefeatable.
   • 1933. Michael Arlen. Man's Morality: A Story, page 19.

     His life and the lives of all his fellow officers had been devoted to the service of Airways since childhood, its might and its undefeatableness had been...

   • 1954. Bruno de Jésus-Marie. Love and Violence, page 249.

     It is a standing temptation, to confuse the undefeatableness of total love with the vicious vindictiveness of man's projected malice — to confuse negative...

   • 1990. Norman Vincent Peale. Have a Great Day, page 117.

     October 29, When you attain a sense of undefeatableness, you will always be high-spirited and confident.

English

Etymology

From un- +? defeat +? -able.

Adjective

undefeatable (not comparable)

1. Not defeatable; impossible to defeat.

Noun

undefeatable (plural undefeatables)

1. Something that has an undefeatable quality.

Synonyms

• invincible
• invulnerable
• impregnable
• impenetrable

Derived terms

• defeatable
• undefeatability
• (rare) undefeatableness