weighty vs weightless

weighty and weightless both are adjectives.

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

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