Severely simple.

synoniemen: severe, stark, stern.

Roget 739: severe; strict, hard, harsh, dour, rigid, stiff, stern, rigorous, uncompromising, exacting, exigent, exigeant^†, inexorable, inflexible, obdurate, austere, hard-headed, hard-nosed, hard-shell [U.S.], relentless, Spartan, Draconian, stringent, strait-laced, searching, unsparing, iron-handed, peremptory, absolute, positive, arbitrary, imperative; coercive etc. 744; tyrannical, extortionate, grinding, withering, oppressive, inquisitorial; inclement etc. (ruthless) 914.1; cruel etc. (malevolent) 907; haughty, arrogant etc. 885; precisian^†.    ... meer laten zien

Roget 895: discourteous, uncourteous^†; uncourtly^†; ill-bred, ill-mannered, ill-behaved, ill-conditioned; unbred; unmannerly, unmannered; impolite, unpolite^†; unpolished, uncivilized, ungenteel; ungentleman-like, ungentlemanly; unladylike; blackguard; vulgar etc. 851; dedecorous^†; foul-mouthed foul-spoken; abusive.    uncivil, ungracious, unceremonious; cool; pert, forward, obtrusive, impudent, rude, saucy, precocious.    repulsive; uncomplaisant^†, unaccommodating, unneighborly, ungallant; inaffable^†; ungentle, ungainly; rough, rugged, bluff, blunt, gruff; churlish, boorish, bearish; brutal, brusque; stern, harsh, austere; cavalier.    taint, sour, crabbed, sharp, short, trenchant, sarcastic, biting, doggish, caustic, virulent, bitter, acrimonious, venomous, contumelious; snarling etc. v.; surly, surly as a bear; perverse; grim, sullen etc. 901.1; peevish etc. (irascible) 901.    untactful, impolitic, undiplomatic; artless etc. 703; ... meer laten zien

Of a stern or strict bearing or demeanor; forbidding in aspect:
— An austere expression.

synoniem: stern.

Pools: surowy, groźny, srogi

Practicing great self-denial:
— A desert nomad's austere life.

synoniemen: ascetic, ascetical, spartan.

Roget 955: ascetic, austere, puritanical; cynical; over-religious; acerbic.   

Pools: ascetyczny