Meanings
- idiomaticUsed to express disappointment about someone's uncharacteristic or abnormal past actions.
What were you thinking when you left the oven on yesterday?
Cite this entry
what was someone thinking. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/what%20was%20someone%20thinking
“what was someone thinking.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/what%20was%20someone%20thinking. Accessed November 5, 2026.
WatkinsX Dictionary, s.v. “what was someone thinking,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/what%20was%20someone%20thinking.
Source: what was someone thinking on Wiktionary, CC BY-SA 4.0.