1. Done with very great haste and without due deliberation
   "rejected what was regarded as an overhasty plan for reconversion"
   - hasty, precipitate, precipitant, precipitous

See also: hurried

• messaging
• messenger
• messenger boy
• messenger RNA
• messiah
• messiahship
• messianic
• Messidor
• messily
• Messina
• messiness
• messmate
• messuage
• messy
• mestiza
• mestizo
• mestranol
• Mesua
• Mesua ferrea
• meta-
• metabola
• metabolic
• metabolic acidosis
• metabolic alkalosis
• metabolic disorder