Synonyms for Be uncertain

Synonyms starting with letter F

• fluctuate

  doubt, question
• fear

  doubt, question
• falter
• frown on
• face down
• flare up
• fly in the face of
• frown upon
• figure out
• fly in face of
• frowned on
• find fault
• frown at
• flounder
• fumble
• feel unsure