incorrigible.

1. Incapable of being corrected or reformed, often because a behavior persists despite repeated attempts.

2. Persistently behaving badly or indulging a habit despite correction or restraint.

Use it for

Words that belong together

• incorrigible optimist
• incorrigible habit
• incorrigible mischief
• incorrigible curiosity
• incorrigible liar

On the page

The incorrigible prankster hid the bell inside the empty stove.

Her incorrigible curiosity sent her through the forbidden doorway.

Usage notes

Often humorous or affectionate when applied to habits; it can sound severe when applied to a person. Sense 2: The word can be playful, but its literal sense suggests reform is unlikely.