Definition of invertebracy in English:

invertebracy

Pronunciation /ɪnˈvəːtɪbrəsi/

noun

  • Lack of courage, resolve, or strength of purpose; disinclination to act or assert oneself; weakness, timidity, spinelessness. Compare "invertebrate", "invertebrate".

Origin

Late 19th century; earliest use found in The New York Independent. From invertebrate see -acy.