nameless

adjective

1 the pictures were taken by a nameless photographer | a nameless grave:

unnamed, unidentified, anonymous, incognito, unspecified, unacknowledged, uncredited;

unknown, unheard of, unsung, uncelebrated, inglorious, obscure;

untitled, undesignated, unlabelled, untagged;

rare innominate.

▷antonyms well known, famous.

2 he had become a prey to nameless fears:

unspeakable, unutterable, inexpressible, unmentionable, indescribable, abominable, horrible, dreadful, appalling, shocking, awful, terrible, frightful;

indefinable, vague, obscure, unspecified, unspecifiable.

▷antonyms specific.

nameless Oxford Dictionary of English