ing or continuing through the year; as, perennial fountains.
- Lasting or active through the year or through many years.
- Lasting an indefinitely long time; enduring: perennial happiness.
- Appearing again and again; recurrent. See Synonyms at continual.
- Botany Living three or more years.
- Botany A perennial plant.
- Something that recurs or seems to recur on a yearly or continual basis: "that hardy perennial, the budget deficit” ( David S. Broder).