Lacking charm; unattractive, dull, and without any appealing or enchanting qualities.
Charm + -less (without). The -less suffix created a negative opposite, forming antonyms throughout English.
Words with '-less' often sound harsher than their positive opposites—'charmless' feels more insulting than just 'not charming,' which is why English writers choose '-less' when they want to emphasize lack!
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