Synonyms of unwiser

1 Syllable
rash
2 Syllables
naive, silly, childish, foolish, witless, thoughtless, inept, unsound, reckless
3 Syllables
imprudent, indiscreet, foolhardy, senseless, short-sighted, inane, misguided
4 Syllables
ill-advised, impolitic, injudicious, improvident, immature
5 Syllables
undesirable, unintelligent, inappropriate, inadvisable, ill-considered, unfortunate