Answer: skittish

AnswerCrossword Clue
SKITTISHApt to shy, as a horse
SKITTISHPeople-wary, as a horse
SKITTISHEasily startled
SKITTISHVery jumpy
SKITTISHJumpy
SKITTISHApt to start
SKITTISHEasily frightened.
SKITTISHLike colts and lambs
SKITTISHEasy to scare
skittishLively and unpredictable; playful
skittish(esp. of a horse) Nervous; inclined to shy
skittisheasily frightened