Used when someone's escape from a situation has resulted in relief or happiness. After leaving the stressful job, he was well out of it and much happier.
Pro Tip 2/3
Colloquial Usage
The phrase is informal and best used in casual or conversational settings. She finally sold that old car; she's well out of it now.
Pro Tip 3/3
Subjective Opinion
Expresses the speaker's personal opinion that the situation left behind was unfavorable. They got a divorce? He's well out of that toxic relationship!