perpetual
Perpetual (adjective) means lasting forever, or continuing for so long it feels endless. Example: “She lived in a state of perpetual worry about her son overseas.”
How to use perpetual
Learner’s notesIn plain EnglishNever-ending, or set up to continue indefinitely.
Fill the gap
Can you complete this real example?
She lived in a state of _____ worry about her son overseas.
Etymology
From Latin perpetuus, "continuing throughout," built from per- ("through") and a root meaning "to seek" or "make for."