Synonyms of intense in English:

intense


See definition of intense

adjective

1‘the subject of intense interest’

SYNONYMS
great, acute, enormous, fierce, severe, extreme, high, exceptional, extraordinary, harsh, strong, powerful, potent, vigorous
major, profound, deep, concentrated, consuming
informal serious
ANTONYMS

mild

2‘a very intense young man’

SYNONYMS
passionate, impassioned, ardent, earnest, fervent, fervid, hot-blooded, zealous, vehement, fiery, heated, feverish, emotional, heartfelt, eager, keen, enthusiastic, excited, animated, spirited, vigorous, strong, energetic, messianic, fanatical, committed
literary perfervid, passional
ANTONYMS

apathetic