one and only Synonyms

matchless unrivaled unmatched peerless one nonpareil true love unparalleled unprecedented favorite person in a league of its own dearest significant other loved one best ever unmatchable unrivalled in a class of one's own unrepeated number one in a league of one's own one in a million second to none unique unexampled unequaled lone individual incomparable exquisite exclusive exceptional dear darling ace only sweetheart sweet solitary sole singular singleton single outstanding beloved