Synonyms of exclusively

1 Syllable
but
2 Syllables
onliest, wholly, apart, only
3 Syllables
solely, alone, purely, totally
4 Syllables
especially, singularly, completely, entirely, restrictedly
5 Syllables
individually, undividedly, unaccountably, distinctively, intensively
6 Syllables
unmitigatedly, uncustomarily