Synonyms of hole-and-corner

1 Syllable

sly

2 Syllables

hidden, veiled, sneaking, stealthy, hush-hush, covert, skulking, slinking

3 Syllables

sub-rosa, furtive, fraudulent, private, underhand

4 Syllables

undercover, clandestine, surreptitious

5 Syllables

under-the-table, unauthorized