radio-controlled aircraft vs pilotless aircraft

radio-controlled aircraft and pilotless aircraft both are nouns.

Word	Noun	Adjective	Verb	Adverb
radio-controlled aircraft	Yes	No	No	No
pilotless aircraft	Yes	No	No	No

As nouns, radio-controlled aircraft and pilotless aircraft are synonyms defined as:

radio-controlled aircraft and pilotless aircraft: an aircraft without a pilot that is operated by remote control

Other synonyms of radio-controlled aircraft include drone.

radio-controlled aircraft (noun)	pilotless aircraft (noun)
an aircraft without a pilot that is operated by remote control	an aircraft without a pilot that is operated by remote control