knuckleball knuckle • knuckle ball · · · Info · Definitions · Synonyms · Characters · · knuckleball · · Text Latin · · Script 11 · · Length 3 · · Syllables Definitions · · · (noun) a baseball pitch thrown with little speed or spin. Synonyms: knuckler. · · Noun Definition 1 Synonyms · · · knuckler · · Synonym 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 k latin small letter k U+006B l latin small letter l U+006C n latin small letter n U+006E u latin small letter u U+0075