to become frightened; to be frightened (of); to be scared (of)
cowardly; craven; unfair; mean; sneaky
to falter; to flinch (from); to recoil (from); to quail (at)
being startled, surprised or afraid; panic; trepidation
to play a dirty trick; to use underhanded methods; to hit below the belt; to play foul
very mean (sneaky); extremely unsportsmanlike
to act timid (about doing); to show diffidence; to feel ashamed; to feel guilty