Synonyms of heightened

1 Syllable

hard, harsh, te, rough

2 Syllables

raised, solemn, grievous, complex, grave, serious, fierce, strenuous, stormy, profound, ringing, knotty, plangent

3 Syllables

laborious, resonant, abstruse, confused, onerous, sonorant, increased, resounding, deep-toned, labored, intense

4 Syllables

concentrated, oppressive, intensive, formidable, complicated, recondite, reverberant, all-consuming

5 Syllables

intolerable