закрепен означава в английски

fast [faster, fastest]▼(firmly or securely fixed in place)
adjective
[UK: fɑːst] [US: ˈfæst]

loose [looser, loosest]▼(not fixed tightly)
adjective
[UK: luːs] [US: ˈluːs]

unattached▼(not attached)
adjective
[UK: ˌʌ.nə.ˈtætʃt] [US: ˌʌ.nə.ˈtætʃt]