perennial
adjective
[ pəˈrɛnɪəl ]
• lasting or existing for a long or apparently infinite time; enduring or continually recurring.
• "his perennial distrust of the media"
Similar:
everlasting,
perpetual,
eternal,
continuing,
unending,
never-ending,
endless,
undying,
ceaseless,
abiding,
enduring,
lasting,
persisting,
permanent,
constant,
continual,
unfailing,
unchanging,
never-changing,
• (of a plant) living for several years.
• "cow parsley is perennial"
• (of a stream or spring) flowing throughout the year.
• "spring streams rise from perennial springs"
perennial
noun
• a perennial plant.
• "perennials will transform the garden in summer"
Origin:
mid 17th century (in the sense ‘remaining leafy throughout the year, evergreen’): from Latin perennis ‘lasting the year through’ + -ial.