Inveterate vs. Invertebrate — What's the Difference?

Having a particular habit, activity, or interest that is long-established and unlikely to change

Invertebrates are animals that neither possess nor develop a vertebral column (commonly known as a backbone or spine), derived from the notochord. This includes all animals apart from the subphylum Vertebrata.

Firmly and long established; deep-rooted

An animal lacking a backbone, such as an arthropod, mollusc, annelid, coelenterate, etc. The invertebrates constitute an artificial division of the animal kingdom, comprising 95 per cent of animal species and about thirty different phyla.

Persisting in an ingrained habit; habitual

Denoting an invertebrate or relating to the invertebrates as a group.

Firmly established from having been around for a long time; of long standing

Lacking a backbone or spinal column; not vertebrate.

(of a person) Having had a habit for a long time

Of or relating to invertebrates

Malignant; virulent; spiteful.

An animal, such as an insect or mollusk, that lacks a backbone or spinal column.

(obsolete) To fix and settle after a long time; to entrench.

An animal without vertebrae, i.e. backbone.

Old; long-established.

(informal) A spineless person; a coward.

Firmly established by long continuance; obstinate; deep-rooted; of long standing; as, an inveterate disease; an inveterate abuse.

Lacking a backbone; without vertebrae.

Having habits fixed by long continuance; confirmed; habitual; as, an inveterate idler or smoker.

Cowardly, uncourageous; lacking character.

Malignant; virulent; spiteful.

Destitute of a backbone; having no vertebræ; of or pertaining to the Invertebrata.

To fix and settle by long continuance.

Any animal lacking a backbone or notochord; the term is not used as a scientific classification

Having a habit of long standing;

Lacking a backbone or spinal column;