ALL meanings of impugnable
im·pugn
I i - noun impugnable That can be impugned; open to (verbal) attack, open to question. 1
- verb with object impugnable to challenge as false (another's statements, motives, etc.); cast doubt upon. 1
- verb with object impugnable Archaic. to assail (a person) by words or arguments; vilify. 1
- verb with object impugnable Obsolete. to attack (a person) physically. 1