spiny-finned fish spiny-finned • spiny-footed · · · Info · Definitions · Synonyms · Antonyms · Characters · · spiny-finned fish · · Text Common · · Latin · · Scripts 17 · · Length 4 · · Syllables Definitions · · · (noun) a teleost fish with fins that are supported by sharp inflexible rays. Synonyms: spiny-finned fish, acanthopterygian. · · Noun Definition 1 Synonyms · · · acanthopterygian · · Synonym 1 Antonyms · · · soft-finned fish · · Antonym 0 malacopterygian · · Antonym 1 Characters · · space U+0020 - hyphen-minus U+002D d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 h latin small letter h U+0068 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 y latin small letter y U+0079