Antonyms of some: many, all, most, majority Synonyms of some: a few, several, a couple, minority
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.
Smart, intelligent, wise, brainy.
Adept, able, skilled, fit.Adept, skilled, adroit, useful, helpful, clever...
GRE Antonyms Questions Preparation
Analogy and Antonym Questions on the GRE