1. Poorly conceived or thought out
   "an ill-conceived plan to take over the company"
   - misguided

See also: foolish

• paigle
• pail
• pailful
• paillasse
• pain
• pain in the ass
• pain in the neck
• pain pill
• pain sensation
• pain threshold
• pain unit
• pain-free
• Paine
• pained
• painful
• painful sensation
• painfully
• painfulness
• painkiller
• painkilling
• painless
• painlessly
• pains
• painstaking
• painstakingly