A despicable coward.

Roget 862: cowardice, pusillanimity; cowardliness etc. adj.; timidity, effeminacy.    poltroonery, baseness; dastardness^†, dastardy^†; abject fear, funk; Dutch courage; fear etc. 860; white feather, faint heart; cold feet [U.S.], yellow streak [Slang].    coward, poltroon, dastard, sneak, recreant; shy cock, dunghill cock; coistril^†, milksop, white liver, lily liver, nidget^†, one that cannot say 'boo' to a goose; slink; Bob Acres, Jerry Sneak.    alarmist, terrorist^†, pessimist; runagate etc. (fugitive) 623.    ... show more

Despicably cowardly:
— The unprovoked and dastardly attack by Japan on...December 7th.

synonym: dastardly.

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