1. Lasting through a week
   - weeklong

See also: long

• instant coffee
• instant replay
• instantaneity
• instantaneous
• instantaneous sound pressure
• instantaneously
• instantaneousness
• instanter
• instantiate
• instantiation
• instantly
• instar
• instate
• instauration
• instead
• instep
• instigant
• instigate
• instigation
• instigative
• instigator
• instil
• instill
• instillation
• instillator