weightless vs weighty

weightless and weighty both are adjectives.

Word	Noun	Adjective	Verb	Adverb
weightless	No	Yes	No	No
weighty	No	Yes	No	No

weightless (adjective)	weighty (adjective)
having little or no weight or apparent gravitational pull; light	having relatively great weight; heavy
	excessively fat
	weighing heavily on the spirit; causing anxiety or worry
	of great gravity or crucial import; requiring serious thought
	powerfully persuasive