infest /in-festˈ/

1. To swarm over, cover or fill, in a troublesome, unpleasant or harmful way
2. To invade and live on or in as a parasite
3. To disturb or harass

1. Hostile
2. Troublesome

infestāˈtion noun

1. Attack, or the condition of being attacked, esp by parasites
2. Molestation (obsolete)

• unpreferred
• unpregnant
• unprejudiced
• unprelatical
• unpremeditable
• unpremeditated
• unpremeditatedly
• unpremeditatedness
• unpremeditation
• unpreoccupied
• unprepare
• unprepared
• unpreparedly
• unpreparedness
• unpreparednesses
• unprepares
• unpreparing
• unprepossessed
• unprepossessing
• unprescribed
• unpresentable
• unpressed
• unpresuming
• unpresumptuous
• unpretending