Synonyms of ingenious

1 Syllable
shark, bright, shrewd, slyer, sly, slier, smart, deft, sliest, slyest
2 Syllables
probing, smarter, adroit, causal, skillful, witty, ready, sneaking, slighty, able, shrewdest, deftest, gifted, smarted, savvy, cunning, savvies, defter, smartest, subtle, shrewder, wittier, cannier, whipper, crafty, artful, subtler, subtlest, canny
3 Syllables
discerning, artistic, talented, dexterous, guileful, streetwise, vulpine, demiurgic, hairline, eggheaded, creative, acute, argute, elegant
4 Syllables
resourceful, expressive, causative, leading-edge, cutting-edge, deviceful, forgetive, inventive, intelligent, avantgarde, original
5 Syllables
generative, innovational, innovatory, innovative
6 Syllables
imaginative, originative