https://www.merriam-webster.com/thesaurus/adeptness
ADEPTNESS Synonyms: 53 Similar and Opposite Words | Merriam-Webster Thesaurus
Synonyms for ADEPTNESS: skill, skillfulness, cunning, proficiency, art, ease, adroitness, artistry; Antonyms of ADEPTNESS: ineptitude, ineptness, artlessness,...
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