Instruction. Choose the word opposite in meaning to the underlined word in the sentence.
The rather insignificant effort he made yielded ....results
Answer Details
The word "insignificant" means "unimportant" or "not meaningful." Therefore, the opposite of "insignificant" would be a word that means "important" or "meaningful."
Out of the options given, the word that means "important" or "meaningful" is "tremendous," so the opposite of "insignificant" is "tremendous."