clamber (verb) definition: climb awkwardly, as if by scrambling synonym: jostle, scurry, scuttle antonym: settle Sentence: He was clambering heavily among the creepers and broken trunks when a bird, a vision of red and yellow, flashed upwards with a witch-like cry; and this cry was echoed by another. (page 7)

spectacles (noun) definition: eyeglass synonym: glasses/specs antonym: plain eyes sentence: He came forward, searching out safe lodgments for his feet, and then looked up through thick spectacles. (page 7)

proffer (verb) definition: present for acceptance or rejection synonym: proposition/suggestion antonym: keep/withhold sentence: The fat boy waited to be asked his name in turn but this proffer of acquaintance was not made; the fair boy hung steadily at his shoulder. (page 9)

efflorescence (noun) definition: the process of organisms growing and blossoming synonym: flowering/growing antonym: shrivel sentence: It was clear to the bottom and bright with the efflorescence of tropical weed and coral. (page 12)

enmity (noun) definition: a feeling of hostility synonym: rancor/aggression antonym: kindness/friendship Sentence: He trotted through the sand, enduring the sun’s enmity, crossed the platform, and found his scattered clothes. (page 14)

decorous (adjective) definition: characterized by propriety and dignity and good taste synonym: seemly/proper antonym: indelicate/improper Sentence: Suddenly Piggy was a-bubble with decorous excitement. (p. 15)

furtive (adjective) definition: secret and sly, or sordid synonym: sneaky/concealed antonym: honest/open sentence: There was a slight, furtive boy whom no one knew, who kept to himself with an inner intensity of avoidance and secrecy. (p. 22)

indignation (noun) definition: a feeling of righteous anger synonym: outrage/fury antonym: anger/delight sentence: Piggy stood and the rose of indignation faded slowly from his cheeks. (p. 25)

Hiatus (noun) definition: an interruption in the intensity or amount of something synonym: interval/lapse antonym: continuation sentence: There came a pause, a hiatus, the pig continued to scream and the creepers to jerk, and the blade continued to flash at the end of a bony arm. (p. 31)

gesticulate (verb) definition: show, express or direct through movement synonym: gesture/motion antonym: rest sentence: "While we're waiting we can have a good time on this island." 
He gesticulated widely. (p. 34)