Antonyms of adj invulnerable

1 sense of invulnerable

Sense 1
invulnerable (vs. vulnerable) -- (immune to attack; impregnable; "gunners raked the beach from invulnerable positions on the cliffs")

vulnerable (vs. invulnerable) -- (susceptible to attack; "a vulnerable bridge")
        => assailable, undefendable, undefended, open -- (not defended or capable of being defended; "an open city"; "open to attack")
        => compromising -- (vulnerable to danger especially of discredit or suspicion; "she found herself in a compromising situation")
        => defenseless, defenceless -- (lacking protection or support; "a defenseless child")
        => endangered -- ((of flora or fauna) in imminent danger of extinction; "an endangered species")
        => indefensible -- (not able to be protected against attack)
        => insecure, unsafe -- (not safe from attack)
        => penetrable -- (capable of being penetrated; "penetrable defenses")
        => threatened -- ((of flora or fauna) likely in the near future to become endangered; "the spotted owl is a threatened species, not yet an endangered one")
        => under attack (predicate), under fire (predicate) -- (subjected to enemy attack or censure; "an official under fire for mismanagement")
        => unguarded -- (lacking protection or a guard; "an unguarded gate"; "his unguarded queen was open to attack")

Similarity of adj invulnerable

1 sense of invulnerable

Sense 1
invulnerable (vs. vulnerable) -- (immune to attack; impregnable; "gunners raked the beach from invulnerable positions on the cliffs")
       => airtight, air-tight -- (having no weak points; "an airtight defense"; "an airtight argument")
       => bombproof, shellproof -- (able to resist the explosive force of bombs and shells; "bombproof shelter")
       => defendable, defensible -- (capable of being defended)
       => entrenched -- (dug in)
       => impregnable, inviolable, secure, strong, unassailable, unattackable -- (immune to attack; incapable of being tampered with; "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection")
       => tight -- (set so close together as to be invulnerable to penetration; "in tight formation"; "a tight blockade")
       => sheltered -- (protected from danger or bad weather; "a sheltered harbor")
       => untouchable -- (beyond the reach of criticism or attack or impeachment; "for the first time criticism was directed at a hitherto untouchable target"- Newsweek)
          Also See-> protected#1; safe#1; secure#2; unconquerable#1