Simple past tense and past participle of outguess.(verb)
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Use "outguessed" in a sentence
"And what is known can be out-maneuvered, outguessed."
"A handful of newsletters have outguessed the market with some regularity."
"So it had happened — and with a minimum of drama; Nicole felt outguessed, realizing that from the episode of the camphor-rub, Dick had anticipated everything."