Lord Fauntleroy
Milquetoast
Percy
Sissy
baby
big baby
chicken
cream puff
crybaby
doormat
dull tool
effeminate
goody-goody
gutless wonder
invertebrate
jellyfish
lightweight
lily
meek soul
milksop
milquetoast
mollycoddle
namby-pamby
nance
nancy
nebbish
nonentity
old woman
pansy
pushover
sad sack
sissy
softling
softy
sop
weak sister
weakling
wishy-washy
coward