it is tiring
how do I say 'it is tiring''
Un trabajo muy cansado.
Algo que cansa.
Me cansan los hilos que carcen de contexto.
If you want to say that something is tiring or exhausting, for example doing a boring task, the expression I've heard most is "es (muy) agotador". You could also use cansado or other expressions, depending on context. Hope this helps
What Quentin is trying to say is: give us more context!
our dictionary uses several verbs to mean tiring:
Whether is is maculine or feminine depends on the IT being described and whether estar/ser may depend on context.
Es cansada , fastidiosa, agotada, fatigada, aburrida, enfada (don't trust my adjective forms, I guessing, they may all be ora forms)
cansar, fastidiar, agotar, fatigar, aburrir, enfadar