1) Acts fearful 2) Acts skittish 3) Backs up in fear 4) Balks 5) Behaves skittishly 6) Draws back 7) Draws back in fear 8) Exhibits fright 9) Flings 10) Flings, especially sideways 11) Moves suddenly as if startled 12) Rears up 13) Recoils 14) Recoils from 15) Recoils from fright 16) Shows fright 17) Shows reluctance 1) Rears