dukti -dut- gismu

x1 is polar opposite from/contrary to x2 in property/on scale x3 (property/si'o).

See also ranxi, ragve, fatne.

In notes:

fatne
x1 [sequence] is in reverse order from x2 [sequence]; x1 (object) is inverted from x2 (object).
ragve
x1 is located across/on the other side of gap/boundary x2 from x3; x1 is opposite (fi) x3.
ranxi
x1 is ironic(al)/contrary to expectation x2 in state/property/aspect x3.
ku'i
discursive: however/but/in contrast.
zu'u
discursive: on the one hand - on the other hand.
dukmai
x1 is a quantity of antimatter including x2 in shape/form x3
dukratsle
x1=s1=d1 is an antiparticle of particle x2=d2
dutkai
x1 is characterized by the polar opposite of x2 (ka) on scale x3 (si'o)
smudukti
d1 and d2=s2 are antonyms of each other.
studukti
d1 and d2=s2 are antipodes on s1.
tolkai
x1 is characterized by the polar opposite of x2 (ka)
tolmapti
m1 is incompatible with m2 in aspect m3.
tradutxu'a
x1=t1 is hypocritical in action t2=d1, which is contrary to assertion x2, under conditions t3.