1. Relying on observation or experiment
   - experimental, observational

See also: empiric, empirical

• pushiness
• pushing
• Pushkin
• pushover
• pushpin
• Pushto
• Pushtun
• pushup
• pushy
• pusillanimity
• pusillanimous
• pusillanimously
• pusillanimousness
• puss
• pussley
• pussly
• pussy
• pussy willow
• pussy's-paw
• pussy-paw
• pussy-paws
• pussycat
• pussyfoot
• pussytoes
• pustular