Portent n. A sign or warning that something significant is likely to happen. “an occurrence of crucial portent.”

Virulent adj. Extremely severe or harmful in its effects. Bitterly hostile or antagonistic; hateful. “Virulent criticism.”

Prescient; Prescience adj. Having or showing knowledge of events before they take place; foresight. “You should be prescient about choosing your employer.”

Affinity n. A spontaneous or natural liking or sympathy for someone or something. “He has an affinity for science fiction movies.”

Timorous adj. Showing or suffering from nervousness, fear, or a lack of confidence: “A timorous demeanor.”

Recondite adj. (of a subject or knowledge) Little known, obscure, abstruse. “Recondite information.”

Obsequious adj. Obedient or attentive to an excessive degree. “The obsequious service resulted in an excellent tip.”

Colloquial (ism) adj. (of language) Used in ordinary conversation; not formal or literary. “His lecture was quite engaging due to his colloquial speech.”

Ostracize v. Exclude (someone) from a society or group. “She felt ostracized by society.”

Irascible adj. Characterized by or arising from anger. (of a person) Easily made angry. “He was always irascible and quick to get into a fight.”