1. Full of or characterized by a particular quality:
* Curious: Full of curiosity
* Joyous: Full of joy
* Dangerous: Full of danger
2. Relating to or belonging to a particular thing:
* Religious: Relating to religion
* Ambitious: Relating to ambition
* Suspicious: Relating to suspicion
3. Having the quality of:
* Fabulous: Having the quality of being fabulous
* Spacious: Having the quality of being spacious
* Fabulous: Having the quality of being fabulous
4. Capable of or tending to:
* Capricious: Tending to change abruptly
* Gaseous: Capable of being a gas
In short, "-ious" generally conveys a sense of "full of," "related to," "having the quality of," or "capable of."
It's important to note that "-ious" is not always the only suffix that can create adjectives with these meanings. There are other suffixes like "-ous," "-ful," "-ive," and "-al" that can also be used to form adjectives with similar meanings.