Idioms and Phrases with form an opinion
form an opinion
Make up one's mind or decide what one thinks about something. For example, I need more facts before I can form an opinion about this issue, or Don't tell me your views; I want to form my own opinion.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.