spininess spinigrade • spinipetal · · · Info · Definitions · Synonyms · Characters · · spininess · · Text Latin · · Script 9 · · Length Definitions · · · (noun) the quality of being covered with prickly thorns or spines. Synonyms: prickliness, bristliness, thorniness. · · Noun Definition 1 Synonyms · · · prickliness · · Synonym 1 bristliness · · Synonym 2 thorniness · · Synonym 3 Characters · · e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E p latin small letter p U+0070 s latin small letter s U+0073