high, lofty, noble
Sam was a real leader who had high moral ideals.

unattainable
This is not an unattainable ideal.

romantic
romantic ideals of motherhood

traditional
aesthetic, artistic, cultural, ethical, moral, political, social
democratic, liberal, revolutionary, socialist
Platonic
Platonic ideals of beauty

be committed to, believe in, cling to, embrace, espouse, have, support
They still clung to the old ideals.

share
We obviously share the same ideals.

pursue, strive for
achieve, attain, be true to, conform to, live up to, uphold
A journalist should always live up to the ideals of truth, decency, and justice.

fall short of
This agreement falls far short of the ideal.

abandon, betray
She was accused of betraying her political ideals.

embody, reflect, represent
the democratic ideals embodied in the charter

promote

be, look, prove, seem, sound
make sth
The hotel's size makes it ideal for large conferences.

consider sth

absolutely
almost, nearly (esp. AmE)
hardly, less than
Language learning often takes place in a less than ideal environment.

for
The houses are absolutely ideal for families with young children.

Ideal is used with these nouns:
accompaniment, balance, base, candidate, chance, choice, combination, complement, compromise, condition, destination, duration, environment, fit, foil, image, instrument, job, location, mate, opportunity, physique, place, position, replacement, scenario, setting, situation, solution, spot, starting point, type, vehicle, venue, way, weather, weight, world