metacognition Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. awareness and understanding one's thinking and cognitive processes; thinking about thinking Example Sentence He over thinks everything and gets caught up in his metacognition. Synonyms thinking about thinking; one's thoughts; thinking Antonyms daydreaming Hear It! Say It! Write It! metacognition Switch to cursive Start Share with your friends: