Okamitého
Okamitého is not a standard lexical entry in Czech. In modern Czech orthography the genitive singular form of the adjective okamžitý (meaning immediate or instantaneous) is okamžitého. The spelling okamitého is generally regarded as a nonstandard variant or a misspelling rather than a separate word. Some older texts or nonstandard dialects may occasionally show forms that resemble okamitého, but they do not reflect current standard grammar.
In standard usage, the form okamžitého appears only when a masculine singular noun is in the genitive
For learners, the recommended forms are straightforward: use okamžitý in the nominative, okamžitého in the genitive,