Synonyms and related words :
airsick, all-overish, anxious, apprehensive, barfy, bashful, boggling, carsick, demurring, diffident, faltering, hesitant, hesitating, misgiving, modest, nauseated, nauseous, pukish, puky, qualmy, queasy, queer, scrupulous, seasick, shrinking, shy, squeamish, stickling