Unbidden often carries an emotional or introspective sense when referring to thoughts and memories. Unbidden memories of her childhood summers washed over her.
Pro Tip 2/3
Intrusive Nature
Describes something that interrupts or invades without permission, especially thoughts or emotions. Unbidden jealousy crept into his mind during her speech.
Pro Tip 3/3
Unexpected Arrival
Used for things that arise suddenly or surprisingly, without a clear cause or reason. An unbidden blush spread across her cheeks during the interview.