The antonyms for the word "more widening" are "narrowing," "constriction," "reduction," "shrinking," and "contracting." These words represent the opposite of the process of widening that refers to increasing in size, area or extent. Narrowing means to decrease in size or width, while constriction depicts a tightness or squeezing effect. Reduction refers to the process of diminishing or reducing something in size, amount, or degree. Similarly, shrinking and contracting denote reducing or becoming smaller in size or scope. Identifying antonyms for words is essential for effective communication, word comprehension, vocabulary building, and writing skills.