|Origin:||persister, from Latin persistere, from sistere 'to stand firm'|
1 [intransitive and transitive]
to continue to do something, although this is difficult, or other people oppose it
persist in (doing) something
He persisted in his refusal to admit responsibility.
She persisted with her studies in spite of financial problems.
'I don't think it's right,' John persisted.
if something bad persists, it continues to exist or happen:
If the pain persists, you must see a doctor.