As good as dead in respect to (something); insensible to.

(un-, prefix1 affix 2b.)

Not moved by emotion or excitement; unaffected, undisturbed; collected, calm.

Not kindled; not inflamed or ignited. Frequently figurative.

Without sense, awareness, or consciousness of something. Also: incapable of sympathetic or emotional responsiveness; insensitive; unfeeling. Now rare.

Insensible to. Obsolete.

Not set on fire; unignited.

Not affected or influenced in mind or feeling; untouched, unmoved. Also const. by, †to, †with.

Unable or unfit to receive so as to be affected or influenced by; not open to or susceptible of; unable to ‘take in’ so as to realize, insensible…

= insensible, adj. 4a.

Incapable of mentally feeling, perceiving, or being affected by (something specified); unaware, unconscious; not susceptible, unaffected…

Not affected or prejudiced in mind or feeling; not biassed or moved by excitement or emotion; unmoved, undisturbed, calm.

Not readily intelligible; unfathomable, inscrutable. Obsolete.

(un-, prefix1 affix 4.)

Not carried away by feeling.

impervious to beauty; able to resist the charms of a beautiful woman; cf. woman-proof adj. at woman, n. compounds 2.

With of, to: Not feeling or perceiving; unconscious of; unaffected by. Obsolete.

Not susceptible of some operation, influence, etc.; = insusceptible, adj. a.

Not influenced or affected (by something).

(un-, prefix1 affix 2.)

Unsmitten.

(un-, prefix1 affix 1.)

Not fully susceptible or awake to something.

figurative. That gives no echo; unresponsive.

That does not conduct electricity or heat (or some other form of energy); that is a non-conductor. Also figurative.

Const. to. = insusceptible, adj. b.

Not responsive or answering; not responding to a force or stimulus, or to something which appeals to the emotions; giving no answer to a question…

Not involving an affective state or response (chiefly Psychology); (more generally) characterized by lack of feeling; emotionless, cold.