adj. useful, serviceable, practical, pragmatic, utilitarian, beneficial, valuable, profitable, advantageous, constructive, productive; supportive, reassuring, sympathetic, considerate, caring, accommodating, kind, considerate, cooperative, neighbourly, friendly, benevolent A reference book might be helpful in answering that question Mrs Carlyle gave me such helpful advice.
HELPFUL
Meaning of HELPFUL in English
Oxford thesaurus English vocab. Английский словарь Оксфорд тезаурус. 2012