(a.) Easily startled; apt to start; startish; skittish; -- said especially of a hourse.

Olympian abashed aloof autistic awkward backward blank blushful boggling chilled chilly close cold confused conscious constrained cool cowardly coy demure demurring detached diffident discreet dissociable distant embarrassed expressionless faltering fearful fearing fearsome forbidding frigid frosty goosy guarded hesitant hesitating icy ill at ease impassive impersonal in a tizzy in fear inaccessible inarticulate incompatible insociable introverted jumpy meek modest mopey mopish morose mousy nervous nongregarious offish qualmish rabbity recoiling remote removed repressed reserved restrained reticent retiring scary scrupulous self-conscious self-contained self-effacing self-sufficient shaky shamefaced shamefast sheepish shivery shrinking shy skittery skittish snug socially incompatible squeamish stammering standoff standoffish startlish stickling subdued sullen suppressed timid timorous trembling tremulous trepidant trigger-happy unaffable unapproachable unassertive unassuming unassured unclubbable uncomfortable uncommunicative uncompanionable unconfident uncongenial undemonstrative uneasy unexpansive unfriendly ungenial unostentatious unsociable unsocial withdrawn