Synonyms of unasked

2 Syllables
willing, unsought
3 Syllables
spontaneous, impudent, unbidden, superfluent, presumptuous, superfluous, free-willed, arrogant, unprompted, unwanted, gratuitous, unforced
4 Syllables
uncompelled, unwelcome, residuary, unprescribed, uncalled-for, overbearing, undemanded, voluntary, ungraciousness, uninvited, undesired, unwished-for, unrequested
5 Syllables
voluntarily, unwelcomeness
6 Syllables
inhospitality, inhospitableness
7 Syllables
supererogatory