1. Not firmly or solidly positioned
   "an unfirm stance"
   - unsteady 
2. (of soil) unstable
   "unfirm earth"
   - shifting

See also: loose, unfixed

• peradventure
• perambulate
• perambulating
• perambulation
• perambulator
• Peramelidae
• perboric acid
• Perca
• Perca flavescens
• Perca fluviatilis
• percale
• perceivable
• perceive
• perceived
• perceiver
• percent
• percent sign
• percentage
• percentage point
• percentage sign
• percentile
• percept
• perceptibility
• perceptible
• perceptibly