1. not involving thought or careful consideration; done without thinking

Examples

• His nonthinking response to the question revealed he hadn’t been paying attention.
• The nonthinking acceptance of rumors can spread misinformation quickly.
• She made a nonthinking gesture and accidentally knocked over her coffee cup.
• The committee’s nonthinking approval of the proposal surprised everyone.
• His nonthinking habits included leaving lights on throughout the house.
• The nonthinking repetition of the same mistakes frustrated her teacher.