Invincible means you can’t be beaten by any means possible. Although Juggernaut was truly indestructible and invulnerable to everything however psychological assaults and excessive tier magiks; he was not invincible. You also can say that a soul may be invulnerable to being altered, however it is not going to make sense if you say that a soul could be indestructible to being altered. You can’t say your mind is indestructible to mental attacks…
