in English is:

utopianism

Mutations

Soft:(no mutation)
Nasal:(no mutation)
Aspirate:(no mutation)

Use

yr iwtopiaeth hon
fy iwtopiaeth i
dy iwtopiaeth di
ei iwtopiaeth ef/o
ei hiwtopiaeth hi
ein hiwtopiaeth ni
eich iwtopiaeth chi
eu hiwtopiaeth nhw/hwy
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