Preposition: as

• step: Locate the mildly sloping path and, if you have unlimited time, the ascent is only as formidable as the next step.

Modifying Another Word

• truly: The card itself comes with a breakout box that plugs into the card through a truly formidable cable.

• pretty: That's a pretty formidable team I think you'll agree.

• rather: These considerations at present impose a rather formidable barrier to new investment.

• quite: One of the most popular members of the team Maurice's ability to multitask is quite formidable.

• extremely: Many dangers and difficulties which at this time last night appeared extremely formidable are behind us.

Adjective complement with noun phrase

• make: The addition of Paul Berry to the batting order makes the line up formidable.

Modifies a noun

• foe: No, I just afford them the degree of respect they deserve, they're a formidable foe.

• obstacle: Some of the streams would be formidable obstacles indeed without the bridges provided on official routes.

• opponent: A terrier is a formidable opponent for a fox.

• reputation: The Force's sports teams soon gained a formidable local reputation.

• adversary: But we're a recognized formidable adversary to those in positions of seeming power who have chosen to be agents of Darkness.

• intellect: This formidable intellect was to become one of the most influential men of his time.

Used with adjective complement

• seem: Nothing seems more formidable to me than trying to climb over a Bible verse.

• prove: McMahon said: " Brian's record speaks for itself and his size and power will prove formidable for defenses throughout the A-League.

• remain: The city remains culturally formidable, from the ancient Sorbonne to the vibrant Left Bank.

• look: For the first time in our lives we saw great big four engined bombers and they looked formidable as they flew toward us.

• become: Power up by doing tricks and becoming more formidable.

• appear: Many dangers and difficulties which at this time last night appeared extremely formidable are behind us.