extremely irritating to the nerves; "nerve-racking noise"; "the stressful days before a war"; "a trying day at the office"
{i} attempting; testing, experimenting; examination, determination of guilt or innocence, putting on trial (Law); subjecting to strain; act of separating through heating, refining (Archaic)
If you describe something or someone as trying, you mean that they are difficult to deal with and make you feel impatient or annoyed. Support from those closest to you is vital in these trying times see also try. annoying or difficult in a way that makes you feel worried, tired etc