Iskani niz je bil najden v IZTOČNICAH:
težak
(pridevnik)
sl težek,
težaven,
problematičen,
naporen,
hud
en heavy,
hard,
difficult,
trying,
tough,
major,
troublesome,
troubled,
burdensome,
torrid,
fussy,
rough,
stodgy
de schwer,
hart,
schwierig,
schwerwiegend,
mühsam,
beschwerlich,
mühevoll,
mißlich,
misslich
sq rëndë,
vështirë
fr massif,
difficile