helpful

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

providing assistance or serving a useful function (Freq. 9)
• Ant:
unhelpful
• Similar to:
accommodating, adjuvant, assistive, face-saving, facilitative,
facilitatory, implemental, instrumental, subservient, laborsaving, laboursaving,
laboursaving, reformative, reformatory, right-hand, stabilizing,
stabilising, steadying
• See Also:
accommodating, accommodative, cooperative, encouraging, useful, utile
• Derivationally related forms:
helpfulness