(of a person) not able or willing to show feelings or take part (because nervous, arrogant etc)

remote

showing or having no interest, energy etc

uncaring, disinterested

(of the skin) made hard (by rough work etc)

cruel, insensitive

having no interest or opinion; neither for nor against

unfeeling, uninterested

without power to move or act; without active chemical properties

not moving; lifeless

not sensitive (to touch, light, to the feelings of other people)

indifferent, callous

calm and unemotional (about trouble)

unemotional

(of a person, character) slow to express feelings or opinions; (of a seat in a train, room in a hotel etc) kept for a person's later use

silent, unsociable; constrained

(of a person) self-conscious and uncomfortable in the presence of others; (of animals etc) easily frightened

quiet and self-conscious

not very active; slow-moving

dull, slow-moving

having, covered with, many stones; hard, cold and unsympathetic

hard, icy in appearance, response

not communicative

shy, silent

not showing one's true affection, interest etc

cool

having, showing, no interest; having no personal concern in something

oblivious to

not social; outside the usual working day

unfeeling, uninterested

not sympathetic

without agreement in feeling