Synonyms for Impugnable

Synonyms starting with letter I

• indecisive

  questionable, doubtful, tricky
• insecure

  questionable, doubtful, tricky
• iffy

  tricky, questionable, doubtful
• inconclusive

  questionable, doubtful
• indefinite

  questionable, doubtful
• indeterminate
• indistinct
• improbable
• in doubt
• in line of fire
• in a pickle
• in a tight spot
• in the line of fire
• in hot water
• in Dutch
• in the know
• in turmoil
• in dispute
• in a quandary