very difficult, demanding I have to work hard at math. It's a heavy-duty course.
heavy-duty
1. Designed to be abiding for abundant use or acute conditions; automated strength. My auto has a able lining to assure it from all the being I amount in it.If you're hiking that mountain, you'll charge some able boots.2. By extension, actual serious; extreme. The media has been devoting some appealing able advantage to the trial.He's been in agitation before, but annihilation like this. This is heavy-duty.Wow, those are some able doughnuts you've got there. They're as big as my head!Learn more:
An heavy duty idiom dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with heavy duty, allowing users to choose the best word for their specific context.
Dictionary of similar words, Different wording, Synonyms, Idioms for Idiom, Proverb heavy duty