Meaning: Educe means to draw out, to infer from data, deduce something.
Example: They finally educed a response from the shy boy.
Synonyms: Conclude, Deduce, Develop, Evoke
Antonyms: Neglect, Forfeit, Halt, Disregard, Ignore

Meaning: Lax refers to failing to give proper care and attention, lacking in rigor or strictness.
Example: He is lax in attending classes.
Synonyms: Sloppy, Lenient, Soft, Careless
Antonyms: Attentive, Careful, Concerned, Severe

Meaning: A chasm is a deep divide, either literal or figurative.
An immeasurable depth or space.
Example: The growing chasm between two friends that have not spoken in a long time.
Synonyms: Abyss, Crater, Ravine, Rift, Void, Gorge
Antonyms: Closure, Solid

Meaning: The meaning of a fiasco is something that is an utter and complete disaster.
Something that has failed; a complete failure or collapse; catastrophe.
Example: Within a year, the fiasco became a sensation.
Synonyms: Blunder, Disaster, Failure, Debacle, Flop
Antonyms: Triumph, Success, Miracle, Win, Wonder