The research aims to study semantic models of units that nominate fear (and its hyponyms), courage, and tran-quility in English professional sublanguages. 39 lexico-phraseological units provided the material of the research. The continuous sampling method was implied to elicit units under study from dictionaries. Semantic structure of the units was formed by analysis of dictionary entries and componential analysis (hereinafter CA). The structure was further described. Authors provide CA based on polysemantic unit and unit with one meaning under study. It is stated that emotive component (hereinafter EC) is present in literal and figurative meanings. Thus two semantic models were formed. Semes were marked as Em (Emotion), Pers (Person), Ac (Action), Caus (Causation) according to CA results. Seven names of emotional states constitute the core of the group under study. Nominations of person in state of emotion, actions, and causation factors are at the periphery. The research material was further classified in accordance with metaphoric models of meaning. Introduced models rest on (1) nomination of person in state of emotion, (2) causation, and (3) nomination of emotions. Three parameters appear to have similar sources of metaphorization, i. e. action, place, and force of nature.