Not openly expressed:
— A sneaking suspicion.

synonym: unavowed.

Roget 862: coward, cowardly; fearful, shy; timid, timorous; skittish; poor-spirited, spiritless, soft, effeminate.    weak-minded; infirm of purpose etc. 605; weak-hearted, fainthearted, chickenhearted, henhearted^†, lilyhearted, pigeon-hearted; white-livered^†, lily-livered, milk-livered^†; milksop, smock-faced; unable to say 'boo' to a goose.    dastard, dastardly; base, craven, sneaking, dunghill, recreant; unwarlike, unsoldier-like.    in face a lion but in heart a deer.   " unmanned; frightened etc. 860.    ... show more

Roget 886: servile, obsequious; supple, supple as a glove; soapy, oily, pliant, cringing, abased, dough-faced, fawning, slavish, groveling, sniveling, mealy-mouthed; beggarly, sycophantic, parasitical; abject, prostrate, down on ones marrowbones; base, mean, sneaking; crouching etc. v.. ... show more

Roget 940: dishonest, dishonorable; unconscientious, unscrupulous; fraudulent etc. 545; knavish; disgraceful etc. (disreputable) 974; wicked etc. 945.    false-hearted, disingenuous; unfair, one-sided; double, double-hearted, double-tongued, double-faced; timeserving^†, crooked, tortuous, insidious, Machiavelian, dark, slippery; fishy; perfidious, treacherous, perjured.    infamous, arrant, foul, base, vile, ignominious, blackguard.    contemptible, unrespectable, abject, mean, shabby, little, paltry, dirty, scurvy, scabby, sneaking, groveling, scrubby, rascally, pettifogging; beneath one.    low-minded, low-thoughted^†; base-minded.    undignified, indign^†; unbecoming, unbeseeming^†, unbefitting; derogatory, degrading; infra dignitatem [Lat.], beneath one's dignity; ungentlemanly, ungentlemanlike; unknightly^†, unchivalric^†, unmanly, unhandsome; recreant, inglorious.    corrupt, venal; debased, mongrel.    faithless, of bad faith, false, unfaithful, disloyal; untrustworthy; trustless, trothless^†; lost to shame, dead to honor; barratrous.    ... show more