SYN: Letter, write, label, designate, delineate, mark, imprint, engrave, dedicate, address.

ANT: Erase, efface, cancel, obliterate, expunge.

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KEY: Inscroll.

SYN: Enlist, register, enroll, pattern, flourish, record, calendar.

ANT: Erase, disenroll, cashier, expunge, obliterate, efface, deface.

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KEY: Inscrutable.

SYN: Unintelligible, untraceable, mysterious, unfathomable, profound, insolvable, impenetrable, hidden.

ANT: Obvious, self-evident, familiar, intelligible, explainable.