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in·du·bi·ta·ble

indubitable

 
 
pronunciation:
ihn du bih t bl
features:
Word Combinations (adjective), Word Parts
part of speech: adjective
definition: without question; certain.
That there will be another eruption of the volcano is indubitable; the question is when.
antonyms:
doubtful, dubious, questionable
similar words:
absolute, beyond question, certain
Word Combinations  About this feature
adverb + (adj.)indubitable eternally, unequivocally
(adj.)indubitable + noun admiration, artifact, edifice, fact, hms, knowledge, perfection, phantom, rigging, sphere, truth
derivations: indubitably (adv.), indubitability (n.), indubitableness (n.)
Word Parts  About this feature
The word indubitable contains the following part:
in-2 Latin prefix that means not, without
Show wordsHide wordsMore about this word part:
The prefix in-2 occurs in Latin loanwords and attaches to Latinate bases. The bases of most words prefixed with in-2 are independent adjectives (inadvertent , incognizant ), although the base adjective may no longer be in widespread use (as with incessant ). Exceptions include iniquitous and indignant . -in2 has multiple forms, as the 'n' sound in in-2 assimilates to the initial sound of the base to which it is attached. See the assimilated forms ig-, il-2, im-2, and ir-2.