By force; forcibly; with difficulty — used to indicate doing something against the natural inclination or under compulsion (also used in expressions like 'if I had to say').
強いて言えば、彼の意見にも一理ある。
If I had to say, there's some truth to his opinion.
彼を強いて連れて行く必要はない。
There's no need to force him to come along.
強いて反対する理由は見つからない。
I can't find any reason to oppose it forcefully.