Antonyms of adj weighty

5 senses of weighty

Sense 1
weighty (vs. weightless) -- (having relatively great weight; heavy; "a weighty load"; "a weighty package")

weightless (vs. weighty) -- (having little or no weight or apparent gravitational pull; light; "floating freely in a weightless condition"; "a baby bat...fluffy and weightless as a moth"; "jackets made of a weightless polyester fabric")

Sense 2
cogent, telling, weighty -- (powerfully persuasive; "a cogent argument"; "a telling presentation"; "a weighty argument")

INDIRECT (VIA persuasive) -> dissuasive -- (deterring from action; "dissuasive advice"; "made a slight dissuasive gesture with her hand")

Sense 3
grave, grievous, heavy, weighty -- (of great gravity or crucial import; requiring serious thought; "grave responsibilities"; "faced a grave decision in a time of crisis"; "a grievous fault"; "heavy matters of state"; "the weighty matters to be discussed at the peace conference")

INDIRECT (VIA important) -> unimportant -- (not important; "a relatively unimportant feature of the system"; "the question seems unimportant")

Sense 4
weighty -- (weighing heavily on the spirit; causing anxiety or worry; "weighty problems")

INDIRECT (VIA heavy) -> light -- (psychologically light; especially free from sadness or troubles; "a light heart")

Sense 5
corpulent, obese, weighty, rotund -- (excessively fat; "a weighty man")

INDIRECT (VIA fat) -> thin, lean -- (lacking excess flesh; "you can't be too rich or too thin"; "Yon Cassius has a lean and hungry look"-Shakespeare)

Similarity of adj weighty

5 senses of weighty

Sense 1
weighty (vs. weightless) -- (having relatively great weight; heavy; "a weighty load"; "a weighty package")

Sense 2
cogent, telling, weighty -- (powerfully persuasive; "a cogent argument"; "a telling presentation"; "a weighty argument")
       => persuasive (vs. dissuasive) -- (intended or having the power to induce action or belief; "persuasive eloquence"; "a most persuasive speaker"; "a persuasive argument")

Sense 3
grave, grievous, heavy, weighty -- (of great gravity or crucial import; requiring serious thought; "grave responsibilities"; "faced a grave decision in a time of crisis"; "a grievous fault"; "heavy matters of state"; "the weighty matters to be discussed at the peace conference")
       => important (vs. unimportant), of import -- (of great significance or value; "important people"; "the important questions of the day")

Sense 4
weighty -- (weighing heavily on the spirit; causing anxiety or worry; "weighty problems")
       => heavy (vs. light) -- (marked by great psychological weight; weighted down especially with sadness or troubles or weariness; "a heavy heart"; "a heavy schedule"; "heavy news"; "a heavy silence"; "heavy eyelids")

Sense 5
corpulent, obese, weighty, rotund -- (excessively fat; "a weighty man")
       => fat (vs. thin) -- (having an (over)abundance of flesh; "he hadn't remembered how fat she was")