uncomfortable

aching, hurting, miserable, nasty, painful, sore

agonizing, excruciating, torturous

distressing, disturbing, upsetting

awkward, cumbersome, inconvenient, ungainly

uneasy

chafing, cramping, itching, pinching, pricking, prickling, smarting, stinging

confusing, difficult, disagreeable, impossible, inconvenient, intolerable, troublesome, unpleasant, unwieldy

unsettling

debasing, degrading, demeaning, humbling, humiliating, mortifying

angular, gawky, lubberly, ungainly

boorish, clownish, uncouth

abashed, discomfited, discomforted, discomposed, disconcerted, discountenanced, embarrassed

self-conscious

agitated, bothered, chagrined, dismayed, disquieted, distressed, disturbed, fazed, flustered, jittery, jumpy, mortified, nervous, nonplussed (also nonplused), perturbed, rattled, unhinged, unsettled, upset

diffident, insecure, meek, modest, self-doubting, timid, unassertive, unassuming, unpretentious