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

See also: loose, unfixed

• barunduki
• barycenter
• barycentre
• barye
• baryon
• baryon number
• baryonic
• Baryshnikov
• baryta
• barytes
• barytic
• barytone
• bas bleu
• bas mitzvah
• bas relief
• basal
• basal body temperature
• basal body temperature method
• basal body temperature method of family planning
• basal ganglion
• basal metabolic rate
• basal metabolism
• basal placentation
• basal temperature
• basal vein