precocial or praecocial /pri-, prē-kōˈsh(y)əl/

1. Of or relating to birds whose young are hatched with a covering of down and can leave the nest at once to seek food (ornithology)
2. Premature, forward

• antitrinitarianism
• antitrust
• antitussive
• antitussives
• antitypal
• antitype
• antitypes
• antitypic
• antitypical
• antivaccinationism
• antivaccinationist
• antivenene
• antivenenes
• antivenin
• antivenins
• antiviral
• antivirus
• antivitamin
• antivitamins
• antivivisection
• antivivisectionism
• antivivisectionist
• antivivisectionists
• antiwar
• antler