Antonyms of adj unattackable

1 sense of unattackable

Sense 1
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")

INDIRECT (VIA invulnerable) -> vulnerable -- (susceptible to attack; "a vulnerable bridge")

Similarity of adj unattackable

1 sense of unattackable

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

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