1. Characterized by lack of consistency, regularity, or predictability; wandering or deviating from an expected course or pattern.
Usage: Archaic or literary variant of 'erratic'; less commonly used in modern English.

Examples

• The erratical behavior of the stock market made investors nervous.
• His erratical sleep schedule affected his work performance.
• The weather has been erratical this spring, with sudden temperature swings.
• She followed an erratical path through the forest rather than the main trail.
• The patient's erratical heartbeat concerned the doctors.