set in - definition and synonyms

phrasal verb [intransitive]
present tense
I/you/we/theyset in
he/she/itsets in
present participlesetting in
past tenseset in
past participleset in
  1. if something unpleasant sets in, it starts to happen and have an effect, and is not likely to stop for a long time

    Let’s get inside – the rain’s set in for the day.

See also main entry: set