completely, entirely; used to indicate that something is done all or given/left in whole.
祖母は遺産を子どもたちにそっくり残した。
Grandmother left the entire inheritance to her children.
財布をそっくり盗まれてしまった。
My wallet was completely stolen (everything in it was taken).
その企画をそっくり採用するわけにはいかない。
We cannot adopt that plan wholesale.
strikingly similar or identical in appearance; a dead ringer; exactly alike.
彼は父親にそっくりだ。
He looks exactly like his father.
双子はそっくりで区別がつかない。
The twins are so alike you can't tell them apart.
そのレプリカは本物そっくりだ。
That replica is indistinguishable from the real thing.