The adjective Suspect
is used to describe something not to be relied on or trusted; possibly dangerous or false.
This adjective causes police to attack the effected object. It is automatically applied when an object steals an item. It will also be applied to Maxwell when he takes a object by clicking on an NPC.
This adjective can be given by equipping an object with the Stolen adjective. Objects with this adjective will run away from policemen, guards, sheriffs and detectives.
In Scribblenauts Unlimited, Maxwell could get this adjective by clicking on someone and selecting the Steal option, but this was removed in Scribblenauts Unmasked.
Prisoners are curious towards objects with this adjective.