Related Clues:

• Short, say
• Not cool at all
• English class topic
• Emotionally charged
• Walking on eggshells
• Out of humor
• Miffed
• In a sour mood
• Like a tie game in overtime
• Suspenseful
• Not easy
• Under tension
• Future perfect, for one
• Pluperfect, e.g.
• Apt to snap