1. Behaving responsibly
   - in his right mind, in her right mind

See also: sane

• regressive
• regret
• regretful
• regretfully
• regrets
• regrettable
• regrettably
• regroup
• regrow
• regrowth
• regular
• regular army
• regular convex polyhedron
• regular convex solid
• regular dodecahedron
• regular expression
• regular hexagon
• regular hexahedron
• regular icosahedron
• regular octahedron
• regular payment
• regular polygon
• regular polyhedron
• regular recurrence
• regular tetrahedron