xlali -xla- gismu

x1 is bad for x2 by standard x3; x1 is poor/unacceptable to x2.

Be careful to distinguish between a bad/unacceptable event, and a bad/unacceptable agent: x1 does poorly (= lenu ko'a gasnu cu xlali and not normally ko'a xlali). See also palci, mabla, xamgu, betri.

In notes:

betri
x1 is a tragedy/disaster/tragic for x2.
mabla
x1 is execrable/deplorable/wretched/shitty/awful/rotten/miserable/contemptible/crappy/inferior/low-quality in property x2 by standard x3; x1 stinks/sucks in aspect x2 according to x3.
palci
x1 is evil/depraved/wicked [morally bad] by standard x2.
xamgu
x1 (object/event) is good/beneficial/nice/[acceptable] for x2 by standard x3.
mecyxlarai
m1=x1 is the best/[least bad] among set/range t4 for x2 by standard x3.
narplixau
x1 is useless to agent x2 by the standard of purpose x3
norxau
x1 is mediocre (in terms of benefit) for x2 by standard x3
palcau
x1 (activity/event) is profitless / unprofitable to x2
tcevlimaurempre
The extent to which x1 exhibits property x2 is significantly greater than the extent to which the typical member of set x3 is capable of exhibiting property x2.
toldra
d1 is wrong in property/aspect d2 (ka) in situation d3 by standard d4.
tolplixau
x1 is worse than useless to agent x2 by the standard of purpose x3
xlajijnu
j1 is pessimistic about j3.
xlakemsamtci
t1=xl1 is malware (malicious software) on computer(s) including s1, which is/does bad for/harms xl2 according to standard xl3.
xlamau
x1=m1 is worse than m2 for x2 by standard x3, by amount m3.
xlame'a
xl1=m1 is better/[less bad] than m2 for xl2 by standard xl3, by amount m4
xlamu'ijijnu
j1 is cynical/suspicious about the motives of m3 with regard to action/event m2=j3.
xlapre
x1=p1=xl1 is a bad/poor performing person for task x2=xl2 by standard x3=xl3
xlarai
t1=x1 is the worst among set/range t4 for x2 by standard x3.
dajbu
x1 is okay/alright/acceptable to x2 by standard x3