All 6 Uses

invulnerable
in
The Sunlight Dialogues
(Auto-generated)

He was Hodge the immune and invulnerable, comfortable in the cage of his limitations.†
Chpt 3 *
Even if he were to roll the truck over the embankment into the Tonawanda, brown-green and motionless in August, thick as bad soup and faintly smelling of city sewage and horse— and cow— and pig-manure from the outer edges of Buffalo and the heart of Batavia and the villages, barnyards, hundred back pastures it slid down through—even if he were to slam the truck into a concrete abutment—she'd be outside the reach of her son's childish anger, invulnerable even if he killed her, which he would not.†
Chpt 4
Into his wounded animal love for a creature beyond either love or hate, translated into a present eternity, she projected what her marriage might have been; and his loss of what had seemed invulnerable was the objectification of her loss of what never was.†
Chpt 5
They were invulnerable.†
Chpt 8
It was Will's place to be polite, his business to be cold, a functionary, invulnerable to any wedge of fellow-feeling.†
Chpt 8
I grant, and without reservation, that you are invulnerable.†
Chpt 18

Definitions:

(1) (invulnerable)
impossible to harm

Standard prefix: "-in" at the beginning of a word often means "not" as in "insufficient" or "impossible" or "incapable".
(2) (meaning too rare to warrant focus)