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unsuspected difficulty
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APASmart Define. (1970). expected obstruction thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/expected_obstruction/thesaurus/antonyms
ChicagoSmart Define. 1970. "expected obstruction thesaurus" https://smartdefine.org/expected_obstruction/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 1970, expected obstruction thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/expected_obstruction/thesaurus/antonyms>.
MLASmart Define. "expected obstruction thesaurus" 1 January 1970. Web. 22 September 2026. <https://smartdefine.org/expected_obstruction/thesaurus/antonyms>