invertebrate
[noun]
Synonyms: weakling, baby, doormat, jellyfish, milksop, Milquetoast, mollycoddle, namby-pamby, pantywaist, sissy
[adjective]
Synonyms: weak, boneless, emasculate, forceless, impotent, inadequate, ineffective, ineffectual, slack-spined, spineless

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Related Words: disorganized, structureless

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English Thesaurus: animal, creature, beast, living thing, species, ...

[TahlilGaran] English Synonym Dictionary ▲

in‧ver‧te‧brate /ɪnˈvɜːtəbrət, ɪnˈvɜːtɪbrət, -breɪt $ -ɜːr-/ noun [countable]
a living creature that does not have a backbone
⇒ vertebrate
—invertebrate adjective

[TahlilGaran] Dictionary of Contemporary English ▲

animal a living thing such as a dog, cow, or tiger, but not an insect, fish, or bird:
farm animals such as cows, sheep, and pigs
People are becoming more concerned about animal welfare.
creature /ˈkriːtʃə $ -ər/ an animal – used especially when describing a particular animal’s characteristics or when referring to animals generally:
The cheetah is a magnificent creature.
all the living creatures in the sea
beast an animal, especially a large or dangerous one:
To most people, lions are savage beasts.
a wild beast
living thing an animal considered as one of a group of things that grow and then die, including humans and plants:
The only living things we saw were dogs and cats.
species /ˈspiːʃiːz/ a group of animals whose members are similar and can breed together to produce young animals:
Seven species of birds of prey have been observed.
mammal an animal that drinks milk from its mother’s body when it is young:
Humans, dogs, and whales are all mammals.
vertebrate a living creature that has a backbone:
viruses that affect chickens, monkeys, and most other vertebrates
invertebrate a living creature that does not have a backbone:
earthworms and other small invertebrates

[TahlilGaran] English Thesaurus ▲