forgetfulness

From Middle English forgetfulnes, forgetfulnesse, forȝetfulnesse, equivalent to forgetful +‎ -ness.

• IPA^(key): /fəˈɡɛtfʊlnɪs/

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forgetfulness (usually uncountable, plural forgetfulnesses)

1. The quality of being forgetful; proneness to let slip from the mind.
2. Loss of remembrance or recollection; a ceasing to remember; oblivion.
3. Failure to bear in mind; careless omission; inattention.

   forgetfulness of duty

• amnesia
• memory loss

• “forgetfulness”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.