Adjective

(en adjective)

Unfavourable, adverse, or disadvantageous.

*{{quote-book

, year=2004 , author=Jan Riordan , title=Breastfeeding and Human Lactation , chapter=5 , isbn=0763745855 , page=149 , passage=No untoward effects were reported; however, this was not a blinded or controlled study.}}

*{{quote-book

, year=2007 , author=Steven C. Schachter et al. , title=Behavioral Aspects of Epilepsy: Principles and Practice , chapter=4 , isbn=1933864044 , page=282 , passage=However, these guidelines may not be applicable to all individuals with refractory epilepsy, in whom seizure control is not achieved without using polytherapy or resection surgery with their untoward side effects.}}

Unruly, troublesome.

Unseemly, improper.

*{{quote-book

, year=between 1812 and 1814 , author= , title= , chapter=1 , passage=She could hardly have made a more untoward choice.}}

*{{quote-book

, year=2005 , author=John Martin , title=Organizational Behaviour and Management , isbn=1861529481 , page=518 , passage=The managing director was very depressed at the news, but realized that trying to prove anything untoward had taken place would be very difficult.}}

Adjective

(en adjective)

Causing vexation or annoyance; teasing; troublesome.

(archaic) Full of trouble or disquiet; harassed; distressed; annoyed; vexed.

* Sir K. Digby

He leads a vexatious life.

(legal, of an action) Commenced for the purpose of giving trouble, without due cause.

a vexatious lawsuit