suboptimal /sub-opˈti-məl/

1. Not of the highest standard
2. Not satisfactory

• insulas
• insulate
• insulated
• insulates
• insulating
• insulating board
• insulating boards
• insulating tape
• insulating tapes
• insulation
• insulations
• insulator
• insulators
• insulin
• insulinase
• insulinases
• insulin reaction
• insulins
• insulin shock
• insulin shocks
• insulse
• insulsities
• insulsity
• insult
• insultable