What is a synonyms for the word interfered?

Here are some synonyms for "interfered," depending on the context and nuance you want to convey:

Neutral:

* Meantled

* Intervened

* Meddled

* Impinged

* Involved

* Bothered

Negative:

* Impeded

* Obstructed

* Hindered

* Disrupted

* Tampered

* Intruded

* Trespassed

* Butted in

* Sticked their nose in

* Got in the way

* Crossed the line

Positive:

* Assisted (if the interference was helpful)

* Helped (if the interference was beneficial)

* Interceded (if the interference was to help someone else)

The best synonym will depend on the specific situation and the tone you want to convey.