Roget's Thesaurus: Entry 486 (Credulity)

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#486. Credulity. -- N. credulity, credulousness &c. adj.; cullibility|, gullibility; gross credulity, infatuation; self delusion, self deception; superstition; one's blind side; bigotry &c. (obstinacy) 606; hyperorthodoxy &c. 984[obs]; misjudgment &c. 481.

credulous person &c (dupe) 547.

V. be credulous &c. adj.; jurare in verba magistri[Lat]; follow implicitly; swallow, gulp down; take on trust; take for granted, take for gospel; run away with a notion, run away with an idea; jump to a conclusion, rush to a conclusion; think the moon is made of green cheese; take for granted, grasp the shadow for the substance; catch at straws, grasp at straws.

impose upon &c. (deceive) 545.

Adj. credulous, gullible; easily deceived &c. 545; simple, green, soft, childish, silly, stupid; easily convinced; over-credulous, over confident, over trustful; infatuated, superstitious; confiding &c. (believing) 484.

Phr. the wish the father to the thought; credo quia impossibile [Lat][Tertullian]; all is not gold that glitters; no es oro todo lo que reluce[Sp]; omne ignotum pro magnifico[Lat].