【Forbidding】 means unpleasant, often with the connotation something is being prevented or slowed.

• He gave us a 【forbidding】 look when we asked about our bill.
• The 【forbidding】 traffic made us late for the game.

【Foreboding】 is a premonition about something (usually negative).

• She had a 【foreboding】 her husband would be injured on the job.

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