Weighty (5)
'weighty' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for grave that I've seen before include "Sober" , "Solemn - burial place" , "Solemn in a cemetery?" , "Sombre in the sepulchre" , "Last resting place" .)
'weighty' is the definition.
(synonyms)
This is all the clue.
(Other definitions for heavy that I've seen before include "Difficult to lift" , "Hard to lift" , "Mosque prayer leader" , "Oppressive" , "Not light" .)
'weighty' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for hefty that I've seen before include "Hulking" , "Muscular" , "Large and beefy" , "Big and strong" , "Forceful; weighty" .)