any cold-blooded vertebrate of the class Reptilia, comprising the turtles, snakes, lizards, crocodilians, amphisbaenians, tuatara, and various extinct members including the dinosaurs.

(loosely) any of various animals that crawl or creep.

a groveling, mean, or despicable person.

of or resembling a reptile; creeping or crawling.

groveling, mean, or despicable.

adjective

herpetological , ophidian , reptant , reptilian , serpentiform , serpentine

noun

adder , alligator , amphibian , creeper , crocodile , dinosaur , frog , groveling , iguana , knave , lizard , newt , ophidian , salamander , snake , toad , tortoise , turtle , worm