shell-less
Lacking hard exterior
Shell-less describes something that lacks a shell—either naturally or through removal.
A shell-less egg has no hard outer covering.
Shell-less mollusks like slugs and nudibranchs never develop the protective casing their relatives have.
The shell-less snails were vulnerable to predators.
Also spelled *shellless*.
Having no armor
- unarmoredLacking protective covering
- unprotectedWithout safeguard or shield
- vulnerableOpen to attack
- susceptibleEasily influenced or harmed
helpless · unshielded · undefended · unguarded · assailable · penetrable · pregnable · unfortified
Lacking any covering
- uncoveredMade visible or known
- nakedWearing no garments
- unprotectedWithout safeguard or shield
- openNot closed
vulnerable · stripped · revealed · denuded · unveiled · unshielded · unsheltered · raw
Naked terrestrial mollusk
- nudibranchShell-shedding marine gastropod
- octopusEight-limbed sea mollusk
- squidTen-armed marine mollusk
- cuttlefishColor-changing cephalopod with internal shell
sea cucumber · jellyfish · anemone · earthworm · leech · caterpillar · larva · grub
armorless
Having no armor
- unarmoredLacking protective covering
- unprotectedWithout safeguard or shield
- vulnerableOpen to attack
susceptible · helpless · unshielded · undefended · unguarded · assailable · penetrable · pregnable · unfortified · at-risk
bare
Lacking any covering
- uncoveredMade visible or known
- nakedWearing no garments
- unprotectedWithout safeguard or shield
open · vulnerable · stripped · revealed · denuded · unveiled · unshielded · unsheltered · raw · skinless
slug
Naked terrestrial mollusk
- nudibranchShell-shedding marine gastropod
- octopusEight-limbed sea mollusk
- squidTen-armed marine mollusk
cuttlefish · sea cucumber · jellyfish · anemone · earthworm · leech · caterpillar · larva · grub · maggot