Milquetoast
abulic
afraid
amphibian
aquatic
baby
big baby
biped
canine
cannibal
carnivore
chicken
chicken liver
cosmopolite
coward
cowardly
crustacean
crustaceous
crybaby
disorganized
doormat
dull tool
emasculate
faint
fainthearted
feeble
feebleminded
feline
forceless
fraid-cat
fraidy-cat
frail
funk
funker
gnawer
gutless wonder
herbivore
impotent
inadequate
ineffective
ineffectual
infirm
insectivore
jellyfish
lightweight
lily liver
mammal
mammalian
marsupial
marsupialian
animal
animate being
beast
brute
creature
fauna
arthropod
borer
brachiopod
bryozoan
cnidarian
coelenterate
comb jelly
ctenophore
echinoderm
ectoproct
entoproct
lamp shell
lampshell
mollusc
mollusk
moss animal
parazoan
peanut worm
phoronid
polyzoan
poriferan
rotifer
sea mat
sea moss
shellfish
sipunculid
sponge
symbion pandora
woodborer
worm
zoophyte
algae
amphibia
arthropoda
backboned
borers
diatoms
earthworm
flatfish
grasshopper
metazoan
mollusca
plankton
polyp
polype
polypi
reptile
rodent
silkworm
snail
tadpole
termite
vertebrate