junri -jur- gismu

x1 (person) is serious/earnest/has gravity about x2 (event/state/activity).

Also solemn (= drijunri, ri'irjunri, tcejunri). See also tilju, xalbo, badri, ritli.

In notes:

badri
x1 is sad/depressed/dejected/[unhappy/feels sorrow/grief] about x2 (abstraction).
ritli
x1 is a rite/ceremony/ritual for purpose/goal x2, by custom/in community x3, with form/rules x4.
tilju
x1 is heavy/weighty in mass/weight by standard x2.
xalbo
x1 uses levity/is non-serious/frivolous about x2 (abstraction).
zo'o
attitudinal modifier: humorously - dully - seriously.
jurpei
j1=p1 considers / reflects on j2=p2.
tcejunri
j1 is diligent/painstaking about j2 (event/state/activity)