stodi -sto- gismu

x1 is constant/invariant/unchanging in property x2 (ka) in response to stimulus/conditions x3.

Also stable/consistent/steadfast/firm/steady. See also cenba, stika, stali, vitno, manfo, zasni, tinsa, jdari.


In notes:

cenba
x1 varies/changes in property/quantity x2 (ka/ni) in amount/degree x3 under conditions x4.
jdari
x1 is firm/hard/resistant/unyielding to force x2 under conditions x3.
manfo
x1 (object/event) is uniform/homogeneous in property x2 (ka).
stali
x1 remains/stays at/abides/lasts with x2.
stika
x1 (event) adjusts/regulates/changes x2 (ka/ni) in amount/degree x3.
tinsa
x1 is stiff/rigid/inflexible/resistant in direction x2 against force x3 under conditions x4.
vitno
x1 is permanent/lasting/[eternal] in property x2 (ka) by standard x3 [time-span/expectant one].
zasni
x1 is temporary/not permanent/expected to change in property x2 (ka) by standard/expectant x3.
stotcu
n1=s1 is insatiable in property n2=s2 despite input n3=s3.
toltinsa
x1 is flexible/supple/limber/bendable/non-resistant in direction x2 against force x3 under conditions x4.