Solutions Liable to sudden unpredictable changes of mood or attitude has 4 entries with similar clues

• 9-letter words
• mercurialSubject to sudden changes of moods
• 12-letter words
• loose-cannonUnpredictable person liable to cause harm
• 13-letter words
• temperamentalSubject to sudden changes of moods
• unpredictableSubject to sudden changes of moods