Antonyms of some: many, all, most, majority Synonyms of some: a few, several, a couple, minority
Examples of coincidences: a 4th grader chooses a dinosaur book at the library and his teacher begins a science unit about dinosaurs the very next day I am thinking about a friend I haven't heard...
incidence
Funny,joking
Since paranoia involves an excess of suspicion, we could say that an excess of trust would the opposite state, which we could describe as naivety.