As nouns the difference between impostor and impactor
is that impostor is someone who attempts to deceive by using an assumed name or identity while impactor is any of several machines or devices in which a part impacts on another, or on a material.
impostor
Alternative forms
* imposter
* impostour (obsolete)
Noun
(
en noun)
Someone who attempts to deceive by using an assumed name or identity.
*
Synonyms
* impersonator
* See also
impactor
English
Noun
(
en noun)
Any of several machines or devices in which a part impacts on another, or on a material