Synonyms of undefined

1 Syllable
vast
2 Syllables
formless, boundless, endless
3 Syllables
enduring, perpetual, unproven, indistinct, borderless, forever, limitless, obscurer, unending
4 Syllables
questionable, unmentioned, unconfirmed, unspecific, unspecified
5 Syllables
uncalculable, indefinite, indistinctive, unstipulated, controvertible
6 Syllables
indeterminate, indeterminable